With his leading man looks and his mellifluous voice, Ronald Colman was a star of both the silent and talking eras of Hollywood. His appearances on radio gave the Oscar winner a chance to put that voice to good use, whether he and his wife Benita Hume were clowning around with Jack Benny or whether Colman was making one of his six visits to Suspense. We’ll hear him in “August Heat” (originally aired on May 31, 1945) and “A Vision of Death” (originally aired on March 8, 1951).