- Jeff has been nominated for one award: 1995 - Independent Spirit Award in the category of Best Debut Performance for Clerks.
- Jeff is a huge Denver Broncos fan.
- Jeff has two dogs, Elway and Barkley.
- Jeff auditioned for the role of Brodie Bruce in Mallrats.
- Jeff plays the drums.
- Jeff went to NJIT school for Architecture for a while, but dropped out to move to LA.
- Jeff owns and runs his tile import company.
- Jeff claims the reason he was always chewing gum throughout Clerks was that it helped him to relax.
- Jeff proposed to his ex-wife after only knowing her for three weeks.
- Jeff got the idea for his movie Now You Know from the Matchbox 20 song "Push".
- Jeff met and fell in love with ex-wife, Lisa Spoonhauer on the set of Clerks.
- Before Kevin Smith told Jeff to audition for Clerks, he was working at AT&T. While filming, Jeff wore an AT&T t-shirt in the movie.
- Jeff got married in 1998 to Lisa Spoonhauer, but they were later divorced in 2000.
- Jeff is 6' or 1.83m.
- Jeff's nickname is Heff A.
- Jeff's character in "Clerks" (1994) gets the best lines because Kevin Smith wrote the part of Randal for himself, but he gave the character to Jeff, a friend who had never acted in a movie before.
- Jeff Anderson: (On his and Brian O'Hallaran friendship) Actually it’s the most-asked question and it’s the most surprising thing, other than the fact that I know nothing about Star Wars. The fact that I’m not Brian’s best friend is the most surprising thing to people. He lives in New Jersey still, I’ve moved out here and have lived out here for about 10 years, so we really only see each other on this sort of Clerks-type stuff.
- Jeff Anderson: I loved Chasing Amy. I hated the fact that I wasn't in it. It's a love/hate thing.
- Jeff Anderson: (On how he got the role of Randal in Clerks) I knew Kevin from high school. We graduated the same year. After high school, Kevin used to work in the video store from Clerks, which is just as dismal in real life as it is on film, therefore it was a great place to rent videos because nobody would go there. Kevin was an awesome video employee. He was the anti-Randal, never charged late fees and always had a recommendation for good flicks to rent. It was my coming to the video store, which eventually got me the role as Randal. He'd be pecking away at the script for Clerks while he worked and we would talk about it and when he was finally holding auditions, he invited me down to watch. I watched the auditions, which were less than stellar, then got up and did my own less than stellar audition. Somehow, Kevin saw something he liked in it and came to my house a few nights later and read me for Randal.
- Jeff Anderson: (On his screenplay Now You Know) I pretty much wrote it in my spare time. I never really said, "Okay, I'm going to write a movie now." I was just kinda screwing around.
- Jeff Anderson: You know, Clerks didn’t seem to me a movie that was craving for a sequel.
