Fans of daytime TV probably know him best for roles on soap operas such as Days of Our Lives and General Hospital. Warlock appeared as Frankie Brady on Days of our Lives. In Spring 2007, he joined the cast of The Young and the Restless in the role of Ben Hollander, Jack Abbott's campaign manager.
He appeared as A. J. Quartermaine on General Hospital. During the summer of 2010, Warlock appeared on As the World Turns as Anthony Blackthorn.
Aside from his soap career, Warlock is one of the original cast members of Baywatch, where he played lifeguard Eddie Kramer for the first three seasons as well as appearing in the Baywatch: Hawaiian Wedding reunion movie in 2003. He also was on the short-lived TV Series The Hat Squad, as well as portraying Lyle Menendez in the 1994 TV movie Honor Thy Father and Mother: The True Story of the Menendez Murders.
His film roles include Lovely But Deadly (1981), directed by David Sheldon, as well as Hotshot (1987), directed by Rick King. He played the lead role in the body horror movie Society (1989), directed by Brian Yuzna.