The Baby-Sitters Club Wiki
The Baby-Sitters Club Wiki

Mark Jaffe is a student at Stoneybrook Middle School in the seventh grade. He is really popular and a former boyfriend of Claudia Kishi.


He is really cute and a lot of girls like him.


Mark is first introduced in Claudia, Queen of the Seventh Grade. Claudia originally sees him as obnoxious yet cute. He tells her that he was held back in third grade and has a learning disability as a late reader.

He didn't want to participate in planning the prom in Claudia, Queen of the Seventh Grade and argued with Claudia over the planning. When they started to get along, they kissed each other during a committee meeting.

He went on a double date with Claudia and Kristy Thomas and one of his friends, Steve, in Kristy and the Sister War.

He and Claudia dated from Claudia, Queen of Seventh Grade to Claudia Makes Up Her Mind. Their break up was mutual.


  • Frank O'Malley
  • Tom Blanton