Biography
In films from 1950, actor William Campbell was most often seen in secondary "best friend" or bad-guy roles. In 1955, he starred as "death-row lawyer" Caryl Chessman in Cell 2455 Death Row. Three years later, he co-starred with Paul Birch in
Cannonball, a popular Canadian-based syndicated series about long-haul truckers.
Star Trek fans will instantly recognize William Campbell as the malevolently childlike titular alien Trelane from the 1967 episode "The Squire of Gothos." ~ Hal Erickson, All Movie Guide