By the mid 50s, Granger's Hollywood film career had sputtered, and while he traveled to and from Italy for a succession of sometimes obscure films, he began to concentrate on TV, appearing on "Schlitz Playhouse of the Stars" and the "U.S. Steel Hour" in 1955 and numerous other anthology series into the 60s. He made his TV-movie debut in with "The Challengers" (CBS, 1970). When primetime episodic appearances no longer paid the bills, Granger turned to daytime soap operas, originating the role of Dr. Will Vernon on ABC's "One Life to Live" (1976-77). After a brief return to films as a mysterious and corrupting ambassador in "The Imagemaker" (1986), he created Earl Mitchell, former spy and one of the many husbands of Eileen Fulton's Lisa on "As the World Turns" (CBS, 1986-88).
Granger's stage work had been limited. Although he was a member of Eva Le Gallienne's National Repertory Company in the 60s (starring in a production of "The Sea Gull"), he had his best role in the off-Broadway production of Lanford Wilson's "Tally & Son", for which he won a 1985 OBIE Award.