Co Starring Efrem Zimbalist, Jr. voices Alfred Mathew Valencia voices Robin Bob Hastings voices Commissioner Gordon Jeff Bennett voices The Creeper / Jack Ryder Lloyd Bochner voices Mayor Hamilton Hill Lauren Tom voices Ice Maiden #3 Tress MacNeille voices Dr. Margaret Madsen Cree Summer voices Ice Maiden #2 Ian Patrick Williams voices Artist / Guiseppe Bianci Uncredited Lauren Tom voices Scientist Tress MacNeille voices Ice Maiden #1 Tress MacNeille voices Terrified Lady Jeff Bennett voices Museum Security Jeff Bennett voices Scientist