Sophie is Marianne's mother.
Sophie is first metioned in "Nigel Knows Best", she is not metioned by name in that episode. In "Dear Diary" Sophie was mentioned by name as Eliza and Debbie were doing dishes, as they were joking around playing "Who am I?".
She appeared in three episodes:
- "The Anniversary" (2000)
- "A Tiger By The Tail" (2000)
- The Origin Of Donnie (TV Movie)