On radio, Stacy Harris chased crooks as a G-man, menaced Jack Webb on Dragnet, and lent his voice to Batman. Harris was a great actor who could be heard all over the dial and - later - seen on the big and small screens. We'll hear him in three old time radio thrillers, beginning with a terrific radio adaptation of Mary Shelley's Frankenstein (originally aired on CBS on June 7, 1955). Then, he stars in a what-if drama about the first atomic submarine in "Report on the X-915" (originally aired on CBS on November 8, 1955). Finally, Harris is a jewel thief whose trouble really begins when he tries to dispose of the merchandise in "The End of the String" (originally aired on CBS on January 17, 1951).