Jon: (about his character, Coach McGuirk from Home Movies) When I saw my character I was thrilled because they made him really fat and dumpy while I am this tiny balding Jewish guy.
Jon became popular for providing the voice of Dr. Katz' slacker son, Ben on the Soup2Nuts animated series, Dr. Katz, Professional Therapist, a show also distinctive for being filmed in their patented "squigglevision".
Jon was the voice of Mothmonsterman, a humanoid moth mutant created by Dr. Weird who appeared in the episodes, The Bus of the Undead and The Last One of Adult Swim's animated series, Aqua Teen Hunger Force. Also played Mr. Sticks, a one-eyed triangle demon, for the episode, Broodwich.
Jon appeared in three episodes of the ESPN Classic sports comedy series, Cheap Seats, twice as wrestling announcer, Gene Stapleton and a third time as Rabbi Marc Shalowitz.
Jon has involvement with the live projects Midnight Pajama Jam with Jon Glaser, which is performed in New York City, and Tinkle, a show co-hosted by David Cross and Todd Barry which combines stand-up comedy and live music.
Jon guest starred in the second season episode, Escape to the House of Mummies Part II, of Adult Swim's popular animated series The Venture Bros., in which he played Doctor Orpheus's master, manifested in the form of Cerberus, the three-headed hound of Hades.
Jon is best known for being the voice of Coach McGuirk, Brendon and Melissa's soccer coach, in Brendon Small's hit animated series, Home Movies, but he also voiced Brendon's immature friend, Jason Penopolis and the hyperactive Perry, along with various others.
Jon is working with David Cross (of Mr. Show and Arrested Development) on an animated series called Freak Show, about a band of freak show performers who are also second-rate superheroes.
Jon is the co-creator and writer for the Adult Swim animated series, Assy McGee, scheduled to premiere December of 2006, about a rogue police sniper who literally is a giant pair of human buttocks.
He was a television consultant in 2004 for Comedy Central's Last Laugh '04.
Jon stands 5'6" in height.
Jon has an appearance in the 2001 comedy, Wet Hot American Summer as the voice of the can of vegetables with a shameful habit of autofellatio who speaks to the camp's chef in a hallucinatory sequence.