Parker became a contract player with Warner Bros., appearing in small roles in several films such as Springfield Rifle (1952), Island in the Sky, The Bounty Hunter and Battle Cry. In 1954, he appeared as Grat Dalton in the Jim Davis syndicated Western anthology series Stories of the Century in the episode "The Dalton Brothers".
In another 1954 appearance, Parker was cast as Curt Morrison, a cowboy/militia-marshal patrolling the land rush in the New Mexico Territory, in the episode "The Kickapoo Run" on the syndicated anthology series Death Valley Days. Nancy Hale played his romantic interest, Bonnie Carter, whom Morrison meets again years later after the death of her husband. In the 1961 Death Valley Days episode "A Miracle at Whiskey Gulch", Parker portrayed the Reverend Joel H. Todd, who tries to instill Christian principles in a wild frontier town. Others in the episode were Eddie Firestone as Applejack Jim and George Kennedy, cast as Steamboat Sully, who engage in a brutal fistfight.
Fess Parker was nominated for best new personality Emmy in 1954, but lost to George Gobel. He was never nominated again, nor was his show Daniel Boone.