Dan Aykroyd plays Beldar Conehead, the patriarch of the alien Conehead family who tries to fit in on Earth while awaiting rescue.
Jane Curtin takes on the role of Prymatt Conehead, Beldar's wife, who also adjusts to life on Earth alongside her family.
Michelle Burke portrays Connie Conehead, the teenage daughter of Beldar and Prymatt, who experiences typical teenage struggles while trying to blend in.
Sinbad plays Otto, a friend of the Conehead family who helps them navigate Earth's customs and challenges.
Phil Hartman appears as Marlax, a conniving INS agent who suspects the Coneheads are not who they seem.
Adam Sandler portrays Carmine, a friend of the Conehead family who provides comedic relief throughout the film.
Chris Farley takes on the role of Ronnie the Mechanic, a local mechanic who befriends the Coneheads and helps them with their spaceship.
Eddie Griffin plays a Customer who encounters the Coneheads and adds to the comedic moments in the film.
Michael Richards portrays the Motel Clerk who interacts with the Coneheads during their stay on Earth.
David Spade appears as Eli Turnbull, an INS Agent who investigates the Coneheads' peculiar behavior on Earth.
Michael McKean plays Gorman Seedling, an INS Deputy Commissioner who oversees the investigation into the Conehead family.
Drew Carey appears as a Taxi Passenger who has a brief encounter with the Coneheads during their escapades on Earth.
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