Richard Carlson had an introspective quality to his performances, which was fitting given his academic background. He earned a Master's Degree in English from the University of Minnesota and initially aspired to be a drama teacher. However, he soon turned to acting and invested in his own theatre in Minneapolis, where he starred in productions.
By the age of 23, Carlson had gained enough acting credentials to perform on Broadway alongside notable stars like Ethel Barrymore, Jimmy Durante, and Ethel Merman. He also wrote several short stories, but his play "Western Waters" was a flop. Despite this setback, he was offered a contract by producer David O. Selznick, which led to his move to California.
Carlson made several films, often playing the role of the diffident juvenile. While many of these films were forgettable, he did deliver a standout performance in William Wyler's adaptation of Lillian Hellman's "The Little Foxes." He also appeared in "White Cargo" and "Highways by Night," before serving in World War II.
After the war, Carlson's performances lacked the intensity and vigor they once had. He continued to act in various films and television shows, including the sci-fi features "It Came from Outer Space," "The Magnetic Monster," and "Creature from the Black Lagoon." He also directed several films and television episodes, and wrote the occasional TV script.
In the early 1950s, Carlson starred in the popular television series "I Led 3 Lives," playing the role of Herbert A. Philbrick, who infiltrated the Communist Party on behalf of the FBI. He also appeared in the series "Mackenzie's Raiders" and guest-starred in various western and detective shows. Carlson retired in 1975 and lived in Sherman Oaks, California, until his death.