3rd Rock from the Sun

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.

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  John LithgowDick Solomon
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  Kristen JohnstonSally Solomon
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  Jane CurtinMary Albright
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  Joseph Gordon-LevittTommy Solomon
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  French StewartHarry Solomon
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  Simbi KhaliNina Campbell
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  Wayne KnightDon Orville
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  Elmarie WendelMrs. Dubcek