For other uses of this name, see Merrick (disambiguation)
Wraith converted into a human by Dr. Carson Beckett's iratus bug retrovirus. He was trusted by Beckett and soon became his laboratory assistant. When the body of Lathan was recovered for an autopsy, Merrick became concerned with Carson's examination of the corpse.
No Man's Land - Sheppard's team board a Wraith ship after the retrovirus is deployed and find Merrick and the others transformed into humans.
Misbegotten - Merrick, a Wraith-converted-human, becomes a laboratory assistant to Dr. Beckett, but he finds himself objecting to Carson's treatment of a fellow Wraith's corpse.