Over the next few years, he began accruing supporting parts in several films, co-starring opposite Leslie Caron in Gaby (1956); in the Michael Curtiz-directed film noir, The Scarlet Hour (1956); with Russ Tamblyn in The Young Guns (1956); opposite the Robert Ryan-led ensemble cast of Men in War (1957); and a young Anne Bancroft in The Restless Breed (1957).

The latter featured an all-star cast and was adapted from Jack Kerouac's titular novel, albeit severely diluted from its original beatnik content.

Despite only being eight years younger than her, Marlowe portrayed a character half of Albright's age who was seduced and fell in love, but complications arose when her burlesque stripper past interfered with his idealized perception.

In the 1964 episode "The Forms of Things Unknown” he costarred with Cedric Hardwicke, David McCallum, and Vera Miles playing the blackmailing playboy “André Pavan”.

in the following episodes: - The Exchange (1973) as Ray Curtis - The Rap Taker (1973) as Bob Stern - The Mastermind: Part 2 (1971) as Clenard Massey - The Mastermind: Part 1 (1971) as Clenard Massey - The Fatal Connection (1971) as Duke Bergan - Blood Tie (1969) as Ricky Kriton - The Young Warriors (1969) as William Rockhill - The Tunnel (1968) as Eugene Waring - Overload (1967) as Charles Nyack - The Price of Death (1966) as Casey In 1974, he guest-starred on the Mannix episode "The Green Man" portraying “Turner Dabney”, a counterfeiter.