Charles Martin Smith (1953) is an American actor and director, known for his versatility and character roles.

He gained popularity with the role of the timid Terry "The Toad" Fields in George Lucas's *American Graffiti* (1973), which established him as a recognizable face of 1970s and 1980s cinema.

His career includes prominent roles such as biologist Tyler in *Never Cry Wolf* (1983), an acclaimed performance for its intensity and introspection. He also shone in memorable supporting roles, including the honest accountant Oscar Wallace in Brian De Palma's *The Untouchables* (1987) and NSA agent Mark Shermin in *Starman* (1984).

Smith is often associated with intelligent, principled characters, sometimes awkward or timid, but always endowed with great humanity and emotional depth.