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• Nate Klaus (2012-15)
• John Hannon (co-founder, 2011-14)


• Matt Higbee (iO Theater)
• Kat Gotsick (iO Theater, CSz Chicago)
• Josh Feemster (iO West, The Groundlings)
• Claire Wilcher (Blarf)
• Jon Colby (Dudesical)
• Kim Scarfe (The Holograms)
• Clay Sander (WNEP Theater, The Second City)
• Chowdown Comedy (Des Moines, IA)
• Improv Mining Co. (Helena, MT)
• Cow Tipping Comedy (Helena, MT)
• Jeremy Mahr (G.I.T. Improv)
• Dan Logan (Mixed-Up Comedy)
• Tori House (Victoria's Secret Show)
• Bob Kelly (Tubbs & Kelly Present)
• Jen Kuhle (The Holograms)
• Brent Tubbs (Cross, Ross, & Tubbs)
• Nate Klaus (True Story)

(In order of appearance)
• Josh Feemster (iO West, The Groundlings)
• Bob Kelly (Tubbs & Kelly Present)
• Amy Seeley and Mike Ross (Seeley & Ross)
• Susan Messing (The Annoyance, iO Theater)
• Jaclynn Cherry (Planet Ant)
• Marc Warzecha (The Second City)
• Joe Bill (The Magnet Theater, iO Theater)
• Jeremy Mahr (Sketchville)
• Kat Gotsick (iO Theater)
• Jon Colby (Dudesical)
• Claire Wilcher (Blarf)
• Dan Logan (Mixed-Up Comedy)
• Tori House (Victoria's Secret Show)
• Edith Head (Brady Bunch, Nathan Clark,
  Todd Bosley, & Allison Summers)


Following a three-year run as the two-person improv group Tandem, Leslie Mitchell and Jeff De Leon evolve the show into Wisenheimer. Founded in 2011 by Leslie, Jeff, and John Hannon - with the intent of bringing quality long form improv comedy to the Quad Cities area - Wisenheimer debuts on Wednesday, December 14th at The Establishment in The District of Rock Island, IL.

Wisenheimer runs every Wednesday for a year, slowly building a loyal following each passing week. In April, Wisenheimer has a featured article done in the Quad-City Times. The following month, frequent guest performer Nate Klaus joined the cast as the show expanded to four members.

In January, The Establishment launched the Late Night Studio Series, where Wisenheimer was moved to a permanent residency with shows the first Saturday of every month. That month, they also produced a second show, Side Project, which featured a local celebrity as a special guest monologist.

John Hannon performed his final show with Wisenheimer in May. Frequent guest performer Brent Tubbs joined the cast the following month.

At the 2015 ComedySportz World Championship in June, three members of Wisenheimer were featured performers during a live recording of Improv Nerd with Jimmy Carrane as well as two members representing ComedySportz Quad Cities in the championship match. That same month, Nate Klaus performed for the final time with Wisenheimer, and the troupe returned to its original 3-person format.

 In November, Wisenheimer made their festival debut at the C-U Improv Festival in Champaign, IL.

On Saturday, December 5th, Wisenheimer formally announced the launch of Wisenheimer: The Podcast at their 4-Year Anniversary show.

Wisenheimer is an official selection to the Green Gravel Comedy Festival in March, the Big Des Moines Improv Festival in April, the Detroit Improv Festival in August, and the Crossroads Comedy Festival in October.

Wisenheimer is an official selection to the Third Coast Improv Fest in Nashville, TN. They also retain their residency at The Establishment under the newly rebranded The Late Nite Shows.

Following multiple guest performances, Jen Kuhle officially joined Wisenheimer in April growing the troupe back to four members. Quad Cities area shows feature the entire cast while Leslie, Jeff, and Jen become a de facto touring company for festivals.

Wisenheimer is an official selection to Improv Festivus in Richmond, VA.

Wisenheimer ended their seven-year residency with The Late Nite Shows at The Establishment performing one final time on May 4th due to the venue ceasing operations.

Wisenheimer performed twice in Des Moines, IA alongside Chowdown Comedy. They are also an official selection to Omaha Improv Festival in Omaha, NE; Helena Good Time Comedy Weekend in Helena, MT; Twin Cities Improv Festival in Minneapolis, MN; Compass Improv Festival in St. Louis; Third Coast Improv Festival in Nashville, TN; and the Edinburgh Fringe Festival in Scotland for matches with ComedySportz Manchester, Improv Cage Match, and also joined the festival cast of Crime Of The Hour.