Mary has appeared in the class a lot without actually being a
classmate. She appeared in the seat of
Chunk when Ms. Bitters said that there was nothing where her head
was prior to the Big Bang. She appears partnered with a plumber on
career day. Mary was later seen jump-roping in the play ground. Zim
used Pustulio to hypnotize her. She appeared in Ms. Bitters' class
once again on Halloween in place of
Sara.
She was dressed as a fairy princess. Later, while she was out trick or
treating, GIR attacked her and stole all of her candy.
Mary replaced
Tae in Season 2, becoming a
permanent part of the class.
