Sean, at some point in time, married Louise and had two children: a daughter, Megan, and a few years later a son, Walter in 1982. He and his son weren't close, and Walter left home when he was sixteen and did not see his parents for fifteen years.
He visits Megan the hospital as she grows more ill, and is rather patronizing towards Walter's work but soon realizes that his son is more talented than he thought. He also welcomes Sylvester into his family at the end of the episode accepting his relationship with Megan.
- He and his wife are Catholic.
- He and his wife videochat Sylvester every Saturday at 8:00 p.m.