Richard Derr (June 15, 1917[citation needed] – May 8, 1992) was an American actor who worked with stage, movie, and television drama, performing in both supporting and main roles.

His other Broadway credits include Dial M for Murder (1952), Invitation to a March (1960), Maybe Tuesday (1957), A Phoenix Too Frequent (1949), and The Closing Door (1949).

[1] However, he had the main role in George Pal's 1951 science fiction movie from Paramount Pictures, When Worlds Collide.

Derr later had the main role in The Invisible Avenger (1958), a movie based on the radio show and pulp magazine character The Shadow.

[7] In 1965, he played the role of Dr. Dwyer in the three-part serial, "The Adventures of Gallegher" for Walt Disney's Wonderful World of Color, and later made appearances in Barnaby Jones, in two episodes of Star Trek, and in the 1976 miniseries Rich Man, Poor Man Book II.