After the live telecast each day, ending at about 7:30 pm EST, he took a cab to the theatre where Diamond Lil was playing.

As the popularity of Captain Video increased, Coogan grew less and less comfortable with both the role and the very, very low budget of the production.

He left Captain Video in December 1950 and was replaced by Al Hodge, who played the part until the series ended on April 1, 1955.

[citation needed] Between 1954 and 1961, Coogan appeared in such films as Three Hours to Kill, The Revolt of Mamie Stover, Vice Raid, and Girl on the Run.

During 1951–1963 he guest-starred on a number of other television series, mainly Westerns such Gunsmoke, Laramie, Bonanza, Maverick, Stagecoach West, Cheyenne, Sugarfoot, Bronco, and Wichita Town, as well as crime dramas, such as Perry Mason, Surfside 6, and 77 Sunset Strip.