WHEN BULL ASSISTS WITH A PATENT LAWSUIT DEFENSE, HE IS FORCED TO RETURN TO THE SMALL TEXAN TOWN WHERE HE SUFFERED THE ONLY TRIAL LOSS OF HIS CAREER, ON "BULL," TUESDAY, OCT. 18

"Callisto" - When Bull and Trial Analysis Corporation (TAC)
help a young woman fight a drug patent lawsuit, they're forced to travel to Callisto, the small Texan town where Bull suffered the only trial loss of his career, on BULL, Tuesday, Oct. 18 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Michael Weatherly (Dr. Jason Bull)
Freddy Rodriguez (Benny Col�n)
Geneva Carr (Marissa Morgan)
Jaime Lee Kirchner (Danny James)
Annabelle Attanasio (Cable McCrory)
Christopher Jackson (Chunk Palmer)

GUEST CAST:

Barrett Doss (Kerry Ketchum)
Joe Tippett (Merle Deavers)
Jill Flint (Diana Lindsay)
Luke Forbes (Louis the Bailiff)
Frank Ridley (Judge Albert Darling)
Sam McMurray (Errol Windemere)
Suzanna Hay (Mary, Juror #1)
Don Guillory (Ethan, Juror #7)
Tom Brangle (Roger, Juror)
Darin Guerrasio (Dr. Miller)
Kathleen Kwan (Dr. Wolf)
Kenneth Maharaj (Plaintiff's Expert)
Tre Jamison (Darren)
Bryce Lorenzo (Allison)
Carol Woods (Debbie)
Randall McNeal (Reporter)

WRITTEN BY: Jesse Stern

DIRECTED BY: Dennis Smith