John Patrick Michael "Pat" McMahon
Actor • Broadcaster • Arizona Icon
John Patrick Michael "Pat" McMahon (born August 20, 1935) is a celebrated American actor and broadcaster, best known for his iconic roles on The Wallace and Ladmo Show—a beloved children's television program that aired for more than three decades on KPHO-TV in Phoenix, Arizona. Known for his quick wit, dynamic character work, and deep voice, McMahon brought to life a host of unforgettable characters such as Gerald, Boffo the Clown, Captain Super, Aunt Maud, and many more. His versatility and comedic timing helped make the show a treasured part of Arizona’s cultural fabric.
Born into a vaudeville family, McMahon joined his parents' act at the age of five, touring internationally for 12 years. After graduating from high school in Davenport, Iowa, and attending St. Ambrose College, he launched a radio career that eventually brought him to Phoenix. In 1960, he joined KPHO-TV and quickly became a core part of The Wallace and Ladmo Show, helping to shape the show’s legendary status in children’s television history.
Beyond the show, McMahon has had a long and influential career in broadcasting, working as a disc jockey, program director, and talk show host at prominent Phoenix radio stations including KRIZ, KOY, and KTAR. He also appeared on national television as part of the novelty band Hub Kapp and the Wheels, and portrayed Marvin P. Fassbender in Orson Welles' final film, The Other Side of the Wind.
McMahon's contributions have been widely recognized with numerous honors, including multiple regional Emmys, the Edward R. Murrow Award, an Honorary Doctorate from Ottawa University, and inductions into the Arizona Broadcasters Association Hall of Fame, Arizona Music & Entertainment Hall of Fame, and the Herberger Theater Hall of Fame.
He continues to be an active presence in Arizona media and community life, living in suburban Phoenix with his wife of over 30 years, psychotherapist Duffy McMahon. Through decades of performance, storytelling, and service, Pat McMahon remains a true Arizona treasure.
