The Fourth Horseman (2)

Synopsis

As the Ori plague spreads rapidly, SG-1 hopes that the Prior who caused the disease may hold the key to its cure. Gerak tries to rally the Jaffa to the Ori's cause, prompting Teal'c and Bra'tac to initiate a resistance.

Guest stars

Don S. Davis

George Hammond

Gary Jones

Walter Harriman

Lexa Doig

Dr. Carolyn Lam

Cameron Bright

Orlin

Tony Todd

Lord Haikon

William B. Davis

Damaris