Biography in: "Who's Who in Comedy" by Ronald L. Smith. Pg. 86-87. New York: Facts on File, 1992. ISBN 0816023387
Died of heart attack on set of TV movie Victory at Entebbe (1976) (TV), where he was set to play Ugandan dictator Idi Amin. Amin claimed Cambridge's death was "punishment from God."
Was nominated for Broadway's 1962 Tony Award for Best Supporting or Featured Actor (Dramatic) for "Purlie Victorious," a role he recreated in the film version titled Gone Are the Days! (1963).
Was originally set to star in "The Partners" (1971) but left during filming of the pilot because he did not get along with Don Adams.