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Bettger made many appearances in dramatic roles on television, starring in the 1957 series "The Court of Last Resort" as well as guest starring on "Hawaii Five-O", "Rawhide", "The Tall Man", "The Rifleman", "Gunsmoke", "Bonanza", "Blue Light", "The Time Tunnel", "Death Valley Days", "Laramie" and "Tales of Wells Fargo".