Diagnosis: Unknown is an American medical drama that aired on CBS from July 5 to September 20, 1960. Produced by Bob Banner, the series aired as a summer replacement for The Garry Moore Show, a variety program.

Diagnosis: Unknown (1960)
Overview
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Patrick O'Neal
Dr. Daniel Coffee (9 episodes)

Phyllis Newman
(9 episodes)

Chester Morris
(9 episodes)
MH
Martin Huston
(9 episodes)

Cal Bellini
(9 episodes)

Louis Zorich
(1 episode)