[1] Collet entered show business during his teens and acquired an agent.
Collet remained in touch with his co-star Jonathan Tiersten, and they auditioned together for shows.
Collet 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).