Stan

Stan, played by Andy Richter, is a pathetic dad at Ritchie's school that Christine can't resist sleeping with.

History
Stan first met Christine at a grocery store. They bumped into each other and Christine almost immediately sleeps with him. Christine learns that Stan is a dad at Ritchie's school and ends up sleeping with him every time they run into each other. Christine actually doesn't like Stan at all, but finds herself unable to resist, even once calling in her brother to stop her from running into Stan, but with no success. She does stop running into him after season three. He is nicknamed Sad Dad for being divorced and frequently mocked at Westbridge.