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Karen is one of three NBC sitcoms set in a California apartment complex located at 90 Bristol Court. It stars Don Galloway as Tom and Joyce Bulifant as Mary Gentry, a newlywed couple sharing an apartment with Tom's best friend, Dick Moran, played by Steve Franken.
Mary's gift to Tom may be a mistake: she gave him a microscope---now she can't get him away from it. Tom: Don Galloway. Mary: Joyce Bulifant. Dick: Steve Franken.