The high commander of an alien expedition lands on Earth -- what he considers to be the least-important planet -- in human form as Dick Solomon. Along for the ride are his alien compatriots Harry, Sally and Tommy -- who is the eldest of the group but is now angrily trapped in a teen's body.
John Lithgow
as Dick Solomon
Kristen Johnston
as Sally Solomon
Jane Curtin
as Mary Albright
Joseph Gordon-Levitt
as Tommy Solomon
Elmarie Wendel
as Mamie Dubcek
French Stewart
as Harry Solomon
Simbi Khali
as Nina Campbell
Wayne Knight
as Don Orville