Sophia Bush joins Grey's Anatomy / The View cancels Halloween episode due to the election / Seann William Scott joins Tim Allen/Kat Dennings comedy

PLUS: Actor who plays Rob Gronkowski in American Sports Story: Aaron Hernandez will portray a Travis Kelce-like character on Lifetime.

Sophia Bush joins Grey's Anatomy in a major recurring role
The former One Tree Hill and Chicago P.D. star will recur as Dr. Cass Beckman, "an amiable, fun and a little messy around the edges trauma su…