Which actor did NOT play Tarzan in the movies?

While Buster Crabb, Lex Barker and Miles O'Keeffe played in lesser known versions of the Tarzan story, Tyrone Power was never approached to play Tarzan.

Startlingly handsome, young Tyrone nevertheless struggled to find work in Hollywood. He appeared in a few small roles, then went east to do stage work. A screen test led to a contract at 20th Century Fox in 1936, and he quickly progressed to leading roles. Within a year or so, he was one of Fox's leading stars, playing in contemporary and period pieces with ease. Most of his roles were colorful without being deep, and his swordplay was more praised than his wordplay. He served in the Marine Corps in World War II as a transport pilot, and he saw action in the Pacific Theater of operations.