Willy McKellar is an elderly Sim, living in Barnacle Bay in The Sims 3. He has no family except for his deceased brother Val McKellar. Although he isn't known for being friendly, he has a romantic interest in Rose Rome according to his relationship panel and his biography. He is friends with his brother (if resurrected), Celeste GilsCarbo and Dave Piece. He is also enemies with Felix Soto.
Willy McKellar is mentioned in one of the object descriptions from The Sims 4: Movie Hangout Stuff.