For other uses of this name, see Greer (disambiguation)
Master Sergeant in the US Marine Corps, assigned to Icarus Base
before escaping attack to the Destiny
Greer's past is shrouded in mystery. Before the attack on the base he was facing charges from assaulting Colonel Telford. Colonel Everett Young released him from the detention wing and advised him to take his anger out on the attackers. Now aboard Destiny, he is effectively out of reach of the judicial system.
Despite his volatility, Lt. Matthew Scott places a great degree of trust in him. Though he appears to have equally befriended Tamara Johansen, she does not share in Scott's trust.
Despite Greer's altercation with Telford, Colonel Young fervently believes in the young soldier's integrity.
PLAYED BY: Jamil Walker Smith
FIRST APPEARED: Air, Part 1
Air, Part 1 - Colonel Young drops pending charges against Sergeant Ronald Greer in exchange for helping the Icarus personnel evacuate through the Stargate.
Air, Part 2 - Greer allows Senator Armstrong to sacrifice his life and seal a hatch that was leaking the Destiny's already limited air supply.
Air, Part 3 - Greer risks his life to forage into the desert of an alien world to ensure Lieutenant Scott makes it back to the Stargate in time.
Light - It is revealed that an assault on Colonel Telford is the reason Greer was in confinement pending charges.
Justice - After taking command of the ship, Camille Wray removes Greer from the off-world duty roster.
Lost - Left behind on a planet after Lt. Scott believed Ron was killed in a cave-in, he recalls his rocky relationship with his war vet father.
Pain - Infected with an alien tick, Greer is convinced that Wray and Rush are plotting another attempt to take over Destiny, and hunts them down and nearly kills Wray to stop them.