Young Jack O'Neill is a fictional character portrayed by Michael Welch in the TV series Stargate SG-1.
In the first episode they appeared in, titled Fragile Balance (season 7), they were 15 years old.
They appear in 1 episodes out of a total of 213 aired
Episodes1
Fragile Balance
episode S7.E3 june 2003A teenage boy shows up at the SGC claiming to be Jack O'Neill. He recalls a dream in which an Asgard was studying him. They determine that they must find this Asgard to fix what has been done to Jack.