Flash Gordon's Trip to Mars is a 1938 Universal Pictures 15–chapter science-fiction movie serial based on the syndicated newspaper comic strip Flash Gordon. It is the second of the three Flash Gordon serials made by Universal between 1936 and 1940. The main cast from the first serial reprise their roles: Buster Crabbe as Flash Gordon, Jean Rogers as Dale Arden, Frank Shannon as Dr. Alexis Zarkov, Charles B. Middleton as Ming the Merciless, and Richard Alexander as Prince Barin. Also in the principal cast are Beatrice Roberts as Queen Azura, Donald Kerr as Happy Hapgood, Montague Shaw as the Clay King, and Wheeler Oakman as Ming's chief henchman. The serial was followed by Flash Gordon Conquers the Universe (1940).