Jay was accused of stealing comic material from fellow comedians, Robert Kelly and Rick Shapiro in the past. In Jay's book, he admitted he had borrowed parts of Rick Shapiro's act for a Saturday Night Live.
In 2007 Jay commenced writing a regular article, Mohr Sports for the Sports Illustrated website.
Jay has a tattoo on his left forearm that says "Will 12-27". Will was Jay's cousin who was killed by a drunk driver.
In 2000, Jay won a Golden Satellite Award for Best Performance by an Actor in a Series, Comedy or Musical for his role in Action.
Mohr released a CD recording of his stand-up comedy performance at Rascals Comedy club in West Orange in New Jersey entitled 2nd Show Friday (Dirty).
He was frequently heard on the national sports radio talk show The Jungle. They nicknames him the "Slam Man" on the show. He also guests sometimes on Opie and Anthony, in New York.
Jay lent his voice for the video game Scarface: The World is Yours in 2005.
Jay's celebrity impressions include Andrew McCarthy, Anthony Kiedis, Billy Idol, Christopher Walken, Dick Vitale, Don Rickles, Joe Perry, Kenny G, Mickey Rourke, Ricki Lake, Sean Penn, and Tony Bennett. He has done his Christopher Walken impression on Saturday Night Live and on The Simpsons.
His autobiography Gasping for Airtime: Two Years in the Trenches of Saturday Night Live was released in 2004.
His NBC comedy Community Service was taken out of the line-up before it even had a chance.
One of Jay's recurring characters on Saturday Night Live was James Barone.
Jay has starred in two commercials for Diet Pepsi alongside Diddy and Jackie Chan, where he portrayed the agent for the soft drink, making deals with the stars. The ads were featured during the Super Bowl XL.
Jay Mohr: (on working on Saturday Night Live) All that waiting around for a glimmer of stage time, just getting angry every week...It was just an oppressive, horrible, horrible place to be. I went to work feeling nauseous.
Jay Mohr: What I like about stand-up is, it's truthful. I'm not up there trying to get laid or look cool. I'm up there because I really love it, and it makes people happier.
Jay Mohr: You know how to tell if the teacher is hung over? Movie Day.
Jay Mohr: I wasn't the guy everyone liked. I was the guy that wouldn't shut up.
Jay Mohr: I never minded George Steinbrenner spending obscene amounts of money to put the best product on the field.
Jay Mohr: (about working on "Saturday Night Live") It was fascinating and I wasn't enjoying it, even when it was going well. I watched Nirvana perform, I talked to Kurt Cobain, I talked to Eric (Clapton), I got to work with (Chris) Farley every day. But I was so self-obsessed with survival - survival on the show and then mental health survival and back to survival on the show - I certainly didn't take time to smell the roses.
Jay Mohr: (on playing sports) I'm an animal. I'm the guy you hate. I'm the guy that yells at you for not hitting the cutoff man...stop throwing the ball around.
Jay Mohr: (on working again on television) I'd go back, yeah. I don't care, I got a kid, man-- I'll sell tampons. I mean, there's no selling-out once you get a kid. I got a kid.
Jay Mohr: (on dancing and on being a fan of the NBA team New Jersey Nets) I like to dance. What of it? I'm a man, and when the Nets game's on, you won't find this man dancing ... maybe after, but definitely not during.
Jay Mohr: I think I made a mistake once...yeah...it was only once.