The Fourth Horseman (1)

Synopsis

Earth is infected with a deadly Ori plague, prompting an ally from SG-1's past to come to their aid. Gerak proposes that the Free Jaffa follow the Ori religion.

Guest stars

Don S. Davis

George Hammond

Gary Jones

Walter Harriman

Tony Amendola

Master Bra'tac

Lexa Doig

Dr. Carolyn Lam

Cameron Bright

Orlin

Tony Todd

Lord Haikon