Biografia

Before landing the role of Newman in Seinfeld (1989), he had auditioned for the role of George Costanza.

Credits an episode of Seinfeld with prompting him to lose weight. After shooting several takes of a scene requiring him to run through a field, he began to experience heart palpitations. He visited his doctor and was told that he was approaching morbid obesity and diabetes. Knight then embarked upon a diet-and-exercise program that allowed him to lose 117 lbs, dropping his weight from 327 to 210 lbs.

Worked as a private detective in between acting jobs in his early days.

Has worn the same pair of his trademark glasses since his role in Seinfeld (1989).

Reports claim he was the first person to be cast for Jurassic Park: O Parque dos Dinossauros (1993) after Steven Spielberg saw him in the "interview scene" of Instinto Selvagem (1992).

I love Tom Kenny. And Jill Talley. And Jennifer Aniston, too!

I have this assemblage of small facts, which looks like intelligence but no real depth of knowledge about anything. That's why I'm an actor.

I want to go skydiving. I'd love to go to the Galapagos. Nature still excites me.

I know there are some people in British Columbia who are still holding a vigil for '3rd Rock'.

I had the most fun on '3rd Rock'. It was a great show to work on.