[3] His Broadway credits include Within the Gates (1934-1935), Parnell (1935-1936), Saint Joan (1936), Hamlet (1936-1937), The Wingless Victory (1936-1937), The Star-Wagon (1937-1938), Mamba's Daughters (1940), Strip for Action (1942-1943), Oklahoma!

")[2] One of his best roles (for which he received third billing) was as the good-bad half brother of Joel McCrea in The Tall Stranger (1957).

"[8] He portrayed the recurring character Jim Rafferty in five episodes of the 1960–1961 situation comedy The Tom Ewell Show.

[12][13] Other western series he appeared in during this period included: Tales of Wells Fargo, Wanted: Dead or Alive, Laramie and Bronco.

[14] In 1962, Kelley played Captain Donovan in the episode "The Parish Car" of the ABC drama series, Going My Way, starring Gene Kelly.

[15] Kelley guest starred three times in the western television series Bonanza between 1959 and 1965, playing different roles.