In “Will the Real Martian Please Stand Up?”, the diner cook Haley is revealed to be an alien from Venus.
The episode aired on May 26, 1961, and centers on state troopers investigating a reported UFO crash near a roadside diner. A stranded bus party and the diner staff become suspects after the troopers discover that the number of people inside does not match the number who boarded the bus.
The apparent mystery is resolved when Ross, a businessman among the travelers, reveals that he is actually a three-armed Martian scout. He claims that a Martian colony is about to arrive on Earth. Haley then reveals that his name is not really Haley: he is a Venusian agent who says the Venusian fleet has already intercepted the Martians.
Haley removes his cap to reveal a third eye, making the cook’s identity unmistakable. Avery, Olmstead, and Ross are all separate characters: Avery is the eccentric traveler, Olmstead is the bus driver, and Ross is the Martian disguised as a businessman. Barney Phillips played Haley.