Cassidy Keep adds another side of him. Sean has a family history, a home, and a cousin who can turn a trip there into a fight.

Cassidy Keep adds another side of him. Sean has a family history, a home, and a cousin who can turn a trip there into a fight. Black Tom and Juggernaut aren't a minor inconvenience. Tom brings the personal grudge, and Juggernaut brings the problem of trying to stop someone who can walk through most of what you put in front of him. The later revelation about Theresa makes the family situation even worse. Sean has an adult daughter he didn't know about, and Tom has been part of her life while keeping that truth from him. Theresa's introduction comes through Spider-Woman before the reunion in X-Men #148. She's already a person with her own experiences, not a baby Sean can simply go home and raise. He has to start a father-daughter relationship after missing years he can't get back.