He was a photographer for the Berkeley, California Police Department, and prior to embarking on a film career, auditioned for and performed with the San Francisco Opera Company for two seasons in various supporting roles as a baritone.

He was typically cast as authority figures such as army generals (The Rookie), doctors (Riders to the Stars), and innumerable police officers.

[1] Throughout the 1950s Eldredge also had a prolific television career, appearing on such programs as Peter Gunn, Bat Masterson, The Adventures of Superman, Alfred Hitchcock Presents, and Perry Mason.

He had a recurring role as Dr. Spaulding in all three Spin and Marty series, featured on Disney's Mickey Mouse Club[2] and was seen repeatedly on Bat Masterson.

[better source needed] Eldredge also appeared as a Chamberlain in Demetrius and the Gladiators, which was a sequel to 20th Century Fox's biblical epic, The Robe.