Carlin was the personality that was imprinted onto Daniel when he was given a memory stamp and forced to become one of the underground workers on P3R-118, with no memory of his past. Carlin developed a friendship with Kegan, but as past memories began to return, he began to question his situation and found himself drawn to Jona, Therra, and Tor, the personalities imprinted on O'Neill, Carter, and Teal'c.
Portrayed by: Michael Shanks
Cross Reference: Brenna, Calder, Jona, Kegan, Memory Stamp, Nightsickness, P3R-118, Therra, Tor
Episode Reference: Beneath the Surface