Gethard starred as Todd on the series Broad City from 2014 to 2016. He has appeared in the films May the Best Man Win, The Other Guys, A Novel Romance, The Dictator, Iron Man 3, The Angriest Man in Brooklyn, and Don’t Think Twice. He has also appeared in episodes of the TV series Hope & Faith, The Office, Parks and Recreation, UCB Comedy Originals, and Inside Amy Schumer. Gethard has produced the TV series The Special Without Brett Davis since 2015. He also released the album My Comedy Album in 2014.