Collet decided to enter show Business during his teens and acquired an agent. His first film role was "Paul" in the 1983 horror Sleepaway Camp. Collet remained in touch with his co-star Jonathan Tiersten and they auditioned together for shows. Collet eventually landed the role of "Neil Oxley" in the 1984 CBS after school special Welcome Home Jellybean. Following this success Collet landed numerous roles in television and film including "Jake Livingston" in Firstborn, "Richard Jahnke Jr." in the 1985 TV film Right to Kill?, "Paul Stephens" in the 1986 film The Manhattan Project, and "Albert Kaussner" in the 1995 Stephen King miniseries The Langoliers. His television appearances include guest roles on Magnum P.I., The Cosby Show, The Hitchhiker (1983), The Equalizer (1985), L.A. Law (1986), and MacGyver (1985). He also starred in several Broadway theatre productions. Collet has also been the voice Director for many 4Kids television productions, and voiced the character of Orbot in the video game Sonic Unleashed.
Collet was born in New York City. He has one younger sister, Jennifer. He is a 1986 graduate of Hunter College High School.
Collet met his wife Nicole Dooley in 1998 when they played husband and wife on an episode of Silk Stalkings. Both are Pilates instructors and co-own The Pilates Boutique in Brooklyn, New York. They have one son, Julien.
