Charles Martin Smith (born October 30, 1953) is an American actor and filmmaker, based in British Columbia, Canada. . His breakout role was as Terry "The Toad" Fields in George Lucas' film American Graffiti (1973), which he reprised for its sequel More American Graffiti (1979). He subsequently worked had notable roles in The Spikes Gang (1974), The Buddy Holly Story (1978), Starman (1984), The Untouchables (1987), Deep Cover (1992), And the Band Played On (1993), Speechless (1994) and Deep Impact (1998).
https://en.wikipedia.org/wiki/Charles_Martin_Smith