Oneill is definitely an 8 int barbarian

Daniel is the wizard since he had Merlin’s consciousness for a while

Sam is an artificer

Teal’c is an oathbreaker paladin (he broke an evil oath so his alignment is now good)

Jonas is the npc follower that annoys everyone with his bad haircut.

Vala is the thief

And finally we have Cam Mitchell, he’s a hyper min maxxed fighter (pilot).