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episode title: Clerical Error

Air date: 1980-02-28

episode lenght: 30 minutes

Mork decides to become a priest. (source imdb)

IMDB rating: 7.2

This exact episode (2/24): imdb number tt651186

Robin Williams => imdb link: nm0000245
Pam Dawber => imdb link: nm0001118
Jay Thomas => imdb link: nm0858988
Gina Hecht => imdb link: nm0372958
Jim Staahl => imdb link: nm0820852
Tom Poston => imdb link: nm0692976
Garry Goodrow => imdb link: nm0329340
Mary Betten => imdb link: nm0079299
Wendy Cutler => imdb link: nm0193961
Brad Savage => imdb link: nm0767254
Paul Willson => imdb link: nm0932750
Ralph James => imdb link: nm0416850

Most of the info found on this page was found on imdb