Teen Angel (television) Serial on the Mickey Mouse Club on The Disney Channel, aired from April 24 to May 19, 1989. Guardian angel Buzz Gunderson receives his first assignment: to help a shy misfit named Dennis Mullen gain self-confidence, not to mention the love of the beautiful Nancy Nichols. Only Dennis can see the angel, who has to succeed with his task in order to get into heaven. Stars Jason Priestley (Buzz), Adam Biesk (Dennis), Renee O’Connor (Nancy).