[1] After leaving the tent show, Soule appeared on stage in Chicago for seven years before moving to radio in 1933, including a stint on Chandu the Magician (1935–36).

[8] Concluding his nine-year run on First Nighter, Soule moved to Hollywood, where he appeared in films and television shows, building a reputation as a reliable character actor.

He also acted in many other television series: The Donald O'Connor Show (as a semi-regular), Captain Midnight (as scientist Aristotle "Tut" Jones), I Love Lucy, several appearances as a hotel clerk and choir director John Masters on The Andy Griffith Show, and a semi-regular role as real-life LAPD criminalist Ray Pinker on the original TV and radio version of Dragnet, and as the slightly renamed but essentially identical LAPD criminalist Ray Murray on the 1967 revival version.

In addition, he appeared several times as the clerk of the Carlton Hotel, the San Francisco residence of the character Paladin, in the TV series, Have Gun - Will Travel.

Some include Alfred Hitchcock Presents, The Alfred Hitchcock Hour, The George Burns and Gracie Allen Show, The Jack Benny Program, I Love Lucy, The Danny Thomas Show, Dennis the Menace, The Tab Hunter Show, The Real McCoys, The Beverly Hillbillies, Mister Ed, City Detective, Behind Closed Doors, Dante, Harrigan and Son, Hennesey, State Trooper, One Step Beyond, The Restless Gun, The Rebel, Wanted: Dead or Alive, My Favorite Martian, The Twilight Zone, The Untouchables, Bewitched, Pete and Gladys, The Addams Family, The Munsters, Johnny Ringo, Rawhide, Gunsmoke, Happy, Bonanza, The Jean Arthur Show, Laramie, The Monkees, Mission: Impossible, The Six Million Dollar Man, Buck Rogers in the 25th Century, Fantasy Island, Little House on the Prairie, Dallas and Simon & Simon.

On February 1, 1994, aged 84, Soule died of lung cancer in Corona, California, at the home of his daughter, Jo Ann, and son-in-law, Dr. David Henriksen.