<P> His first screen role was as a rapist in two 1981 episodes of the police drama Hill Street Blues . </P> <P> He was cast as John "Johnny Slash" Ulasewicz, a major supporting character in the 1982 teen sitcom Square Pegs, which received critical praise but was cancelled after 19 episodes (one season). The character was described by one critic as an "apparent (but never declared) gay student ." </P> <P> While Square Pegs was in pre-broadcast production, Butrick was cast to play David Marcus, the physicist son of James T. Kirk (William Shatner) and his former lover Carol Marcus (Bibi Besch), in Star Trek II: The Wrath of Khan . He continued the role in the follow - up film Star Trek III: The Search for Spock, in which the character was killed . He later appeared as T'Jon, the captain of a cargo vessel rescued by the crew of the Enterprise in "Symbiosis", a 1988 episode of Star Trek: The Next Generation . </P> <P> Meanwhile, he appeared in the 1982 comedy film Zapped!, the 1988 horror film Fright Night Part 2, and as Barbara Hershey's hillbilly son in the 1987 drama Shy People . He had a variety of guest roles in television series and television movies . </P>

Who played kirk's son in wrath of khan
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