Graham
THE STARGATE OMNIPEDIA
GRAHAM
Major, leader of SG-14 during the beginning of formal negotiations between Earth and the Tok'ra. Graham, unbeknownst to him or his team, had become a za'tarc, and was programmed to terminate Supreme High Councelor Per'sus. After missing his target, Graham turned the device on himself.

PLAYED BY - Phillip Mitchell
FIRST APPEARED - Divide and Conquer

KEY EPISODE(S) -
Divide and Conquer - Graham attempts to assassinate Per'sus of the Tok'ra, and then turns the weapon on himself.