 During the 1950s and early 1960s, he was a director, producer and host for a number of television series such as "Front Row Center" and Boris Karloff's "Thriller", "Father of the Bride" and "Telescope".He directed the movie "The Incredible Journey" (1963) for Walt Disney.Markle is also credited for signing Lorne Greene to play Ben Cartwright in "Bonanza".