In 1938 Foran moved to Universal Studios, where he acted in many different genres of film from horror to comedies with Abbott and Costello such as "Ride 'Em Cowboy" (1942). Foran appeared in "The Petrified Forest" (1936) with Bette Davis and Humphrey Bogart, "The Sisters" (1938) with Errol Flynn and Bette Davis, "The Fighting 69th" (1940) with James Cagney, "My Little Chickadee" (1940) with Mae West and W.C. Fields, "Rangers of Fortune" (1940) with Fred MacMurray, and played the top-billed hero in "The Mummy's Hand" (1940) with Tom Tyler as the Mummy. Foran reprised the same role in the sequel "The Mummy's Tomb" (1942), this time with Lon Chaney Jr. as the Mummy, and had also appeared in another comedy with Bud Abbott and Lou Costello titled "Keep 'Em Flying" (1941) the previous year. In 1942, Foran starred as Lon Prentice in a 68-minute war support film, "Private Buckaroo" with Harry James, the Andrews Sisters, and Shemp Howard.