Jerry is close to his fellow iCarly cast members Miranda Cosgrove, Nathan Kress, and Jennette McCurdy.
In iCarly, he plays a 26 year old, although in real life he is 31 years old.
Jerry attended the 2008 Nickelodeon Kids' Choice Awards.
Jerry earned a Bachelor of Fine Arts degree at the University of California Santa Barbara.
While in high school, he was active in their school's drama program. He had roles in plays such as Pajama Game, The Matchmaker, Guys and Dolls, Up the Down Staircase, and Sugar.
Jerry attended the LA premiere of The Spiderwick Chronicles.
Jerry used to be Drake Bell's assistant.
Jerry is good friends with Alex Albrecht.
Along with motorcycling, Jerry is good at dirt biking.
On the two shows he is best known as being on, which are iCarly and Drake and Josh, Miranda Cosgrove is a star in both shows.
His hobbies are acting, playing base guitar, and riding motorcycles.
He is Catholic.
His mother is currently (Sept. 2007) teaching Pre-Calculus and Calculus at the high school Jerry went to which is Central Catholic High School.
In 2004, Jerry Trainor made his first appearance in the series, Drake and Josh. One of his co-stars was Miranda Cosgrove. In 2007, Jerry Trainor starred in the TV series, iCarly, also with Miranda Cosgrove as a co-star.
As of August 2007, he is 6'2" (1.88m), weighs 170 pounds, has brown hair, hazel eyes, has a shoe size of 11.5, his sleeve is 34, his neck is 15, and his waist is 33.
Jerry Trainor graduated from University of San Diego High School in 1995, which is now Cathedral Catholic High School.
Jerry: I would never say coming to LA and trying to be an actor is easy. It's certainly not. But my philosophy has always been that the adventure is what makes it great. It's a challenge, but it's a good challenge.
Jerry: (about playing Spencer on iCarly) I threw myself into this role. Once the writers saw I would embrace whatever they threw at me, it was almost like a challenge to them to see what they could do to break me.
Jerry: My parents are just super cool. They were like, "Whatever you want to do, whatever you're good at, do it to the best of your ability and we're going to support you."
Jerry: I've always been a physical comedian. I've always been the gangly goofball who is awkwardly taller than everybody and will do anything to get a laugh.