Evanston native Pat Finn (right) is an alumnus of The Second City and ImprovOlympic in Chicago, where he worked and studied with Ian Gomez, Jon Favreau, Tim Meadows, Rachel Dratch and Chris Farley. He graduated from Loyola Academy in Wilmette, Ill., and Marquette University in Milwaukee, Wis. He's a founding member of the improv group Beer Shark Mice, which includes cast members Mike Coleman, Neil Flynn, Pete Hulne, David Koechner and Paul Vaillancourt. The group was once voted Chicago Improv Festival's Ensemble of the Year and considered one of the best long-form improvisational groups in the country. Finn plays Bob, who along with wife Liz (Mim Drew, left) takes in alien teen Marvin (Lucas Kruikshank) in Nickelodeon's "Marvin, Marvin."