On the hour-long series McClain's Law, Colt played young detective Harry Gates of the San Pedro, California, Police Department, whose use of modern criminology methods placed him in contrast to his older partner, Jim McClain, played by James Arness, who employed the more traditional approach.
Colt was cast as Bobby Slade in Jagged Edge (1985), as Christopher Dollanganger in Flowers in the Attic (1987), and as Donald Cleary in Illegally Yours (1988).