The series went out on NBC first and appeared on Associated Redifusion TV (LONDON) between 1957 and 1962 after the BBC monopoly had been broken much to the consternation of Lord Reith the Corporation's first Director General. In four years Saber went through five assistants : Barney O'Keefe played by Michael Balfour, Pete Paulson played by Canadian Neil Macallum, Bob Page layed by Robert Arden, Larry Nelson played by Gordon Tanner and Eddie Welles played by Gary Thorne. His secretary Stevie was played by singer Diane Decker but she was replaced by Judy played by Theresa Thorne until episode 65 but thereafter Saber had the very occasional love interest of Ann Somers played by Jennifer Jayne. When Donald Gray went to America in 1957 he was met by cheering crowds but they were disappointed when he signed his name as Donald Gray rather than Mark Saber. In a visit to Harlaam Gray was tackled on street by a plump Black lady who asked if he had come to sort out the crime. People blended reality with fantasy but unfortunately Donald Gray was badly typecast very rarely working after the series ended though he was the voice of Colonel White in the puppet series Captain Scarlet and the Mysterons.