Michelle Beaudoin (born August 25, 1975) is a Canadian actress best known for her roles as Jenny Kelley in the sitcom Sabrina, the Teenage Witch and Penny Foster in the teen drama Madison.Early life Beaudoin was born in Edmonton, Alberta, the daughter of Maurice and Lorraine Beaudoin. Career Beaudoin played Sabrina's best friend Marnie in the Sabrina the Teenage Witch movie, and Sabrina's best friend Jenny Kelley in the first season of the series. Apart from Melissa Joan Hart, Beaudoin was th ...