I will grade the winner after at least a few days, running tally will be included.
Clue:
This is the second appearance of this guest character.
Winner: https://lemmy.world/u/slazer2au Stargate SG-1 S09E15 Ethon
Jarrod Kane seeks help from SG-1 after his people are contacted by the Ori. This is the one where his government builds a weapons satellite with designs from the Ori. This satellite goes on to destroy the Prometheus BC-303. The name of this episode comes from Greek mythology: Ethon is the name of the eagle sent down to eat the liver of Prometheus each day.