Invite an Alien to Live with You Day

Invite an Alien to Live with You Day is celebrated every year on July 21 and is a playful nod to the TV series Mork & Mindy, which ran for four seasons. The sitcom follows Mork, an alien from the planet Ork, who comes to Earth to study human behavior. Played by Robin Williams, Mork arrives in Colorado and ends up in Boulder, where he meets Mindy, a young woman who becomes his guide to everyday life. Much of the show’s humor comes from Mork’s literal take on human habits and his sincere attempts to understand Earth culture.

History of Invite an Alien to Live with You Day

The first episode of Mork & Mindy aired in September 1978. The character of Mork first appeared on Happy Days, where he tried to take Richie Cunningham back to his home planet. The idea clicked with audiences, and producers turned it into a spin-off series. Robin Williams’ performance helped define the show’s tone, combining fast comedy with an unexpectedly warm, human center, and the series became a lasting part of late 1970s and early 1980s TV history.

Interesting Facts About Invite an Alien to Live with You Day

Fans still share trivia about the show, its cast, and its real-world ties.

• Series producer Garry Marshall said Robin Williams stood out in auditions and shaped the character’s style.
• The house used as the “home” for Mork and Mindy is associated with Boulder, Colorado, and is still a recognizable spot for fans.
• Robin Williams and Pam Dawber later reunited on an episode of The Crazy Ones in 2014.
• There were ideas for additional story directions later on, including more ambitious concepts, but they never became a full season.

Whether or not every rumor is accurate, the series left a strong cultural footprint.

How to Take Part in Invite an Alien to Live with You Day

The simplest way to observe the day is to rewatch a few favorite episodes of Mork & Mindy and enjoy it as a classic sitcom. You can also explore other Robin Williams performances, since his career covers comedy, drama, and voice acting. If you want something social, host a small themed movie night with sci-fi snacks and simple costumes. Keep it fun, keep it friendly, and share a nostalgia post with other fans if you feel like it.

When Is Invite an Alien to Live with You Day in 2026?

Invite an Alien to Live with You Day is observed annually on July 21.

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