Spot Marks the X (television) An adopted dog with a checkered past leads his new young owner on a wild chase after buried loot. A Disney Channel Premiere Film; first aired on October 18, 1986. Directed by Mark Rosman. 90 min. Stars Barret Oliver (Ken), Geoffrey Lewis (dog pound attendant), Natalie Gregory (Kathy), David Huddleston (Ross), Mike the Dog (Capone).