Cathy makes a new friend on the season finale of The Big C. His name is Angel.

RIP, Joy. Sean stands at the memorial site for the motivation speaker in this Big C scene.

Cathy takes serious issue with Joy in this Big C scene. She'd prefer if she stopped flirting with her husband.

Pictured in this Big C scene: John Hickey as Sean, Tammy Blanchard as Gizelle, and Brian D'Arcy James as Tim.

Allison Janney guest stars here as Rita. She's a big-time Hollywood producer.

Hamish Linklater, as Dave, and Mamie Gummer, as Maxine, meet Paul and Cathy in this season three scene from The Big C.

Welcome to The Big C, Victor Garber. The veteran actor debuts here and confronts Sean.

Susan Sarandon debuts on The Big C here in the role of Joy. She will come to affect Paul and Cathy greatly.

What is a joyologist? Susan Sarandon will teach us all when she recurs on season three of The Big C.

Susan Sarandon debuts here on The Big C. Her character will come to play a vital role in Cathy's life.

Get down with your bad self, Paul! He and Cathy meet with a "joyologist" on the episode "Bundle of Joy."

Cathy stares down Paul in this scene from The Big C. She has an issue with his blogging.