Instructors

Emily Anderson

Emily Anderson

Emily Anderson is an improviser, actor and writer based in Chicago. She performs regularly with The Armando Diaz ExperienceWhirled News Tonight, and Harold team The Ruckus at iO, with The Mission House Ensemble in Tone at The Mission Theater, and in Holy Fuck Comedy Hour at The Annoyance Theatre.


Ryan Archibald

Ryan Archibald

A member of the late-great Harold team People of Earth, Ryan has been an active member of the iO theater his entire adult life and has taught, directed and performed improvisation all over the world. Ryan is a Second Citizen and a part of the Boom Chicago family in Amsterdam.

You can see “Arch” perform at iO in The Armando Diaz Experience3033, and Search Engine.

Dave Asher

Dave Asher

Dave Asher is a veteran teacher, performer, and musical director at the iO Theater. Dave performed on the iO house team “Valhalla” before moving to Amsterdam to perform improv and sketch in “Boom! Chicago”.

Dave has music-directed with The Second City National Touring Company and has been the Music Director of The iO Theater since 2006. As an improv teacher, he has taught classes and workshops at iO since 2006 and is currently the director of the iO musical house team “The DelTones”. (Click on image for full profile)

Kyle Bethea

Kyle Bethea

Bio coming soon.


Dina Facklis

Dina Facklis

Bio coming soon!

Andy Carey

Andy Carey

Andy Carey has studied improvisation with iO Chicago, The Second City and the Annoyance. After receiving his B.F.A. in Theater Arts from the University of Idaho he worked as an actor and teacher for the Oregon Shakespeare Festival and the Idaho Shakespeare Festival.

He can currently be seen performing at iO with The Improvised Shakespeare Company, and around town with the teams “Chrysalis Clark”, “The Big Yellow Bus”, “Homey Loves Chachi” and “The Beatbox”.

Padraic Connelly

Padraic Connelly

Padraic began taking classes at iO in 2001, and is an original cast member of the long-running show Whirled News Tonight. He performed with the Harold teams Ralphie’s Rug and Extra Billies, and toured with Mission:IMPROVable. Padraic has created and taught workshops for university theater programs, corporate clients, and youth and outreach programs. He is the current Artistic Director and an instructor at the CSz Theater Chicago, home of ComedySportz.


Mary Catherine Curran

Padraic Connelly

Bio coming soon!


James Dugan

James Dugan

Bio coming soon!


Jill Fenstermaker

Jill Fenstermaker

Jill Fenstermaker performs with the iO house team Revolver and coaches the iO team Big Spoon. She has performed and taught improv at universities throughout the Midwest and at theaters in North Carolina, New York, Texas and Alaska.

Jon Forsythe

Jon Forsythe

Jon is currently a Level 1 teacher iO Chicago and he loves it very much. He can be seen performing every Tuesday night with the Harold team Sears Tower. His improv training was done at University of Florida’s TSF improv troupe, iO Chicago, Second City, and Annoyance Theater. He’s a former member of ComedySportz Chicago and the sketch group Pennybear, the latter of which went to the NY Fringe Festival in 2008. He was also an original member of the show FELT for which he played with for 10 years. He recently finished his classes at Columbia College Chicago and is working on completing his thesis short film to earn an MFA in film directing.

Jeff Griggs

Jeff Griggs

Jeff has taught and coached at iO for several years and is a long standing member of the house team, “Deep Schwa”. Among other groups, Griggs performs with “Meta Five” and “Aphasia” at venues and festivals around the country.

Besides acting and directing, Griggs has also written several stage plays that have been produced in theaters around Chicago. His book Guru: My Days with Del Close is available from Ivan R. Dee Publishing.

Charna Halpern

Charna Halpern

Charna Halpern is the founder and Artistic Director of the iO Theater. She has been teaching performers how to work together for more than 25 years. Having founded the world famous iO (formerly known as the “ImprovOlympic”)in Chicago and Hollywood, Halpern’s theaters are the meccas of training in the art of improvisation and act as a recruiting stop for television shows like Saturday Night Live, CONAN, The Daily Show, The Colbert Report and countless other shows, supplying Hollywood with writers and performers. She is the author of the improv training manuals Truth in Comedy and Art By Committee

Matt Higbee

Matt Higbee

Matt has been a part of the iO family for alnost 10 years and has been teaching at iO for over 4 years.

At iO he has performed with several teams and can currently be seen performing with the Harold team “Beans” and with “The Armando Diaz Experience”.


Eleanor Hollingsworth

Eleanor Hollingsworth

Eleanor Hollingsworth has a Theatre degree from College of Charleston and has been performing improv in Chicago since 2009. She studied at The Second City, The Annoyance, and iO. She has taught and performed improv around the world, and feels wildly lucky to call her Harold team “Big Spoon” home. You can also see her perform in “Improvised Star Trek”.


Michael Johnson

Michael Johnson

Mike Johnson is a Chicago native, a graduate of University of Illinois at Chicago and holds a degree in Finance, and has studied and performed improv for 14 years. He’s taken classes and performed at iO, ComedySportz, CIC Theater, The Annoyance Theater, The Playground Theater and Second City. At iO, Mike has performed with “Our Feature Presentation Presents the Improvised Movie”, “Dinner for Six”, “Sears Tower”, and last but not least a short stint as host of “The Jam”.

He coaches the Harold team “Meridian” and can currently be seen playing with “Dinner Bell” and “Felt“.

Kim Howard Johnson

Kim Howard Johnson

Kim Howard Johnson is a founding member of the Baron’s Barracudas (the first house team of the ImprovOlympic–now the iO), co-wrote Truth in Comedy with Charna Halpern and Del Close, and wrote The Funniest One in the Room: the Lives and Legends of Del Close, the biography of his longtime friend. He has performed, taught, and directed improvisation and comedy for many years.

Jorin Garguilo

Jorin Garguilo

Jorin Garguilo began improvising in 1991 in North Carolina at the age of 17. Since moving to Chicago in 2004, he has performed, coached, and taught around the city and country. At iO, Jorin has performed on and in a variety of teams and shows, including “Felt”, “Dinner Bell”, “The Scene”, “Our Feature Presentation (The Improvised Movie)”, “Lindberg Babies 2.0″, “Swim Buddies” and the Harold team “Revolver”, which he is  a founding member of. He has also coached the Harold teams “Mrs. Dad” and “Cutlass Supreme”.

He can currently be seen playing with “Felt”, “Dinner Bell”, “The Scene”, and “Revolver”.

Noah Gregoropoulos

Noah Gregoropoulos

Noah has been performing, directing and teaching improvisation for over 20 years. He began teaching at iO in the late 1980’s, and in 1999 he took over the Performance Level workshops when his predecessor, Del Close, passed away halfway through a class session. Gregoropoulos has also taught improvisation at iO West, Second City and Columbia College. (Click on image for his full bio)

As an improvisational performer, he has played on several house teams and currently be seen at iO performing with his current Harold team, “Carl and the Passions” and in “The Armando Diaz Experience”.

Neil Jacobsen

Paul Grondy

Bio coming soon!


Cesar Jaime

Cesar Jaime

Cesar has been with the iO theater for over 15 years. In that time, he has had the pleasure – and honor – of studying and playing with some of the best improvisational teachers in he world, including the late Del Close.
He has coached and performed with numerous teams and also teaches improv around the country in academic and corporate workshops. (Click on image for his full bio)

He can currently be seen playing at iO with the teams “Felt”, “Heraldo”, “Smokin’ Hot Dad”,  and with iO’s longest running show, “The Armando Diaz Experience and Hootenanny”.

Katie Klein

Katie Klein

Katie Klein is from Shaker Heights, Ohio. she began performing in Washington DC, with iMusical at the Washington improv theater and with friends at the DC improv. She loves performing and teaching improv around the country. She is currently on the Second City e.t.c stage and performs every Wednesday at iO with her pals in the Late 90’s and Virgin Daiquiri. She can also be seen playing at other theaters with her sisters in Superhuman and with her incredible husband Neil in Ed and Kath.


Kevin Knickerbocker

Kevin Knickerbocker

Kevin Knickerbocker began his theatre career at age five as Forgetty the Elephant in the Beaumont KIDmunity Players’ production of The Friendship Club. Around Chicago, he was a part of Susan at CIC, a cast member of The TomKat Project at the Upstairs Gallery and beyond, and directed John Reynolds’ A Slice of Life at the Annoyance. At iO he has been very, very proud to be half of Live! Tonight! With Kevin and Nick (Characters Welcome), as well as independent team DMNK and io Harold team Meridian.

Jaime Landolfi

Jaime Landolfi

Bio coming soon.

Michael McCarthy

Michael McCarthy

Michael C. McCarthy has worked professionally as an actor, writer, director, and producer. His professional writing career began at the age of 24 when he became a staff writer for “Saturday Night Live,” followed by two seasons at “Sesame Street”. He began working as an actor/improvisor at The Second City in Chicago, where he performed in 3 revues on their Main Stage. While at Second City, McCarthy started their writing program which currently boasts an enrollment of 1.5 million students. At The iO West Theater in Hollywood, McCarthy created a second writing program (The Comedy Lab) with four separate classes teaching students how to compile exactly what literary agents want to read, thus increasing their chances of working professionally. (Click on image for his full bio)

Former students include: Jon Favreau, Tina Fey, Brian Stack, Peter Murietta, Vanessa Bayer, Matt Walsh, Kay Cannon, Travis Bowe, and Matt Kuhn (and many, many more). And there’s more…

Susan Messing

Susan Messing

Messing, a New Jersey native, is a graduate of Northwestern University. She has performed for over 25 years with Chicago’s iO Theatre, and created and teaches their Level 2 Curriculum which is used in Chicago and LA’s iO West.

At the legendary Second City, Messing wrote and performed in two mainstage revues and directed their National Touring Company. Messing is a founding member of the infamous Annoyance Theatre where she has created roles in over thirty original productions, including “Co-Ed Prison Sluts”, “The Miss Vagina Pageant”, and “Your Butt”.

You can see Messing’s critically-acclaimed show, “Messing with a Friend” every Thursday night at The Annoyance, where she also teaches. Messing is an adjunct professor for Loyola University, DePaul University’s Theatre School, and The University of Chicago. (Click on image for her full bio)

She can currently be seen performing at iO in her two-person show “Blessing”, starring herself and Blaine Swen.

Eric Muller

Eric Muller

Despite being a native Chicagoan, Eric had to move to Houston to start learning improv. He eventually came back home, and has been performing at iO ever since graduating the Training Center in 2008.

He can be seen at iO performing with a new Harold team currently and tentatively called #iOMemories, as well as with the musical improv group The Deltones. Eric is also an ensemble member at ComedySportz Chicago, a creator and founding member of “Thirsty!”, and one-half of the group “Mean People”.

Nnamdi Ngwe

Nnamdi Ngwe

After performing and teaching in Denver, CO, Nnamdi moved to Chicago and has studied and performed at iO, The Second City, The Annoyance, The Playground Theater, and others.

He can currently be seen at iO performing with the “The Deltones”, “Chaos Theory”, and “The Armando Diaz Experience”. He is honored to be performing and teaching at iO.

Adal Rifai

Adal Rifai

Adal has been a part of the iO family for over 10 years and has been teaching at iO for over 5 years.

He has coached and performed with several ensembles at iO, and can currently be seen performing at iO with the Harold team “Revolver”.


Jessica Rogers

Jessica Rogers

Jessica Kelley Rogers began performing in her hometown of Miami, Florida. After falling in love with improvisation at the University of Florida (Theatre Strike Force and A.C.I.I.), Jessica moved to Chicago to study and perform improv while pursuing her other passion, elementary education. A graduate of The iO (formerly the ImprovOlympic) and the Annoyance Theater, Jessica, an 8th grade math teacher, also teaches improv to adults at The iO and The Second City. Jessica has been directing The Second City’s Teen Ensemble since 2007. (Click on image for her full bio)

Patrick Rowland

Patrick Rowland

Patrick has been performing for the iO Theater since 2009. He is a graduate of the Second City and iO Chicago Training Centers. Patrick, a founding member of 3Peat and can be seen also performing with The Armando Diaz Experience, Deltones, and Musical Armando. His solo sketch was featured in the TBS Just For Laughs Festival in 2013. He teaches improvisation at iO Chicago, Second City, and The Playground Theater.

Stacey Smith

Rance Rizzutto

Rance got his start long ago and far away with ComedySportz in Portland, OR. Since moving to Chicago in 2003 Rance has performed and taught for ComedySportz and iO. When not teaching, performing, or coaching, Rance also is a headshot photographer!

He can currently be seen performing at iO with “Chaos Theory” and the musical improv show “The Deltones”.

Tim Soszko

Tim Soszko

Tim Soszko makes his living performing, writing, teaching and directing. He is thrilled to be teaching at iO Chicago. He tours with his sketch and improv groups, The Deltones, the tim&micah project, and Briko, all over the world. Tim also teaches at Second City, Columbia College, The Actors Training Center, Barrel of Monkeys, and Elmhurst Children’s Theater, to name just a few places. And finally, being an accomplished voice over actor, you’ve probably heard Tim’s voice on many TV and radio commercials as well as video games. Tim loves his family and chocolate pudding.


Craig Uhlir

Craig Uhlir

Craig Uhlir has been learning/playing at iO since 1996. He was on teams with names like “Varmit” and “Spank” until becoming an early member of the house teams “Deep Schwa” and “Valhalla”, and later with “Prime” and the legendary two-person show, “Middle Age Comeback”. Hes also has hosted iO’s “Jam” on at least three separate stints starting all the way back in ‘97. (Jam!) Craig has played with ComedySportz Chicago, toured with the Second City (culminating with a tour of Kuwait and Iraq for the USO), and he has spent time in Las Vegas performing and teaching for The Second City at the Flamingo.

He can currently be seen at iO performing with his Harold team, “Deep Schwa”.

Quinn Wilson

Quinn Wilson

Wilson is a narrative and commercial director/producer based out of Chicago. He is rep’ed as a director with Big Spoon Industries, produces freelance for indie features and TV commercials with such companies as Explore Media, and is the head of production for the iO Comedy Network  He has experience and a network in the scene in LA & NYC, as well as owning his own production company.  He worked with such companies as Funny or Die & Break Media and works professionally in Chicago with numerous casting directors, agents, production companies and creatives. MORE…

Farrell Walsh

Farrell Walsh

Farrell Walsh is honored to be an instructor at iO. Farrell has studied at both iO and The Annoyance Theater. He is a founding member of the iO house team “Revolver”, was considers himself very lucky to be part of the cast of iO’s last incarnation of the legendary long-form show, “Close Quarters”. Outside of iO, Farrell is the Artistic Director at CIC Theater, and is part of CIC’s house ensemble “Rainbow Deli”. He also makes up one half of the sketch group “White Fudge”.

He can currently be seen at iO performing with “Revolver”, “The Scene”, and with “The Armando Diaz Experience”.

Mary Cait Walthall

Mary Cait Walthall

Mary Cait Walthall is a performer, writer, and director who has performed with various companies around town, including the Neo-Futurists, the Annoyance, and Baby Wants Candy. She recently returned from post-graduate level training in devised performance practice and physical performance techniques at the London International School of Performing Arts. She has been performing on iO’s stages for 6 years, and she  currently performs with Super Human on Thursday nights. You can also catch her on the Improvised Star Trek podcast (http://www.theimprovisedstartrek.com/)

Rob White

Rob White

Originally from Pittsburgh, Rob has been performing at iO since 2005. He’s been lucky to perform in several great shows including: “Close Quarters” , “Our Feature Presentation Presents the Improvised Movie” , and “Dinner for Six”.

Rob can currently be seen performing at iO the iO house team “Revolver” and with “Whirled News Tonight”.

Shane Wilson

Shane Wilson

Shane Wilson has been performing on the iO stage since 1998. A founding member of Whirled News Tonight, he also was part of the long-running Harold team Space Mountain.
He is the co-creator of The Green Mill Radio Hour with the Swing Shift Orchestra, the ensemble Second Floor Adriana, and the revue Small World. He created and directed Raconteur for The Playground Director’s Series.