Background
Grosz was born New York City, New New York
Grosz was born New York City, New New York
Northwestern University.
He has worked as both an actor and as a producer. He is most recognizable for appearing in Sonic"s "two guys" commercials, which pair him with improvisational comedian T. J. Jagodowski. Grosz is a graduate of Northwestern University, where he worked with Seth Meyers of Saturday Night Live.
He worked as a writer for The Colbert Report from 2007 to 2010, where he has appeared on screen at least four times: once as the Time-Travelling Brandy Thief, once as a version of himself on September 23, 2008, once on May 13, 2010 to interrupt Stephen Colbert"s attempt to introduce guest band The Hold Steady, only to perform the introduction himself, and on January 9, 2013 as McGnaw the Gluten-Free Beaver.
In addition, the May 13, 2010 episode ended with Colbert wishing farewell to the Time-Travelling Brandy Thief. Grosz confirmed on his Facebook page that this was his last episode of the Colbert Report as a writer
Peter has also appeared as a panelist and guest host on the National Public Radio show " ". Grosz joined the writing staff of Late Night with Seth Meyers in 2014.
Peter has appeared in a recurring role for Seasons 1, 2 and 4 of the Home Box Office comedy series Veep, playing callous oil lobbyist Sidney Purcell.