From The Stargate Omnipedia
Rebel Jaffa pretending to be under the banner of the Goa'uld Moloc. Ryk'l chose to rebel against his god, and upon meeting Teal'c (in the hopes of forming an alliance) was slain by Moloc's Imperial guard.
PLAYED BY - Nigel Vonas
FIRST APPEARED - Birthright
Birthright - Ryk'l is killed moments before he can make an alliance with Teal'c and the Tau'ri.