01/07/1998 AT 12:00 AM EST

Beatrice Colen, 51, best known as the roller-skating carhop on early episodes of "Happy Days," Thursday, in Los Angeles, of lung cancer. Colen, the granddaughter of Pulitzer Prize-winning playwright George S. Kaufman ("You Can't Take It With You"), appeared in more than 200 TV shows, commercials and movies.

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