Dr. David Jordan had been Daniel's archaeology professor and mentor in Chicago. He and his associates, Steven Rayner and Sarah Gardner, were examining artifacts on loan from the Egyptian government when Dr. Jordan was killed in a suspicious lab accident attributed to the Curse of Osiris. Daniel returned to Chicago for the funeral and was reunited with his former colleagues, only to discover that the accident had released the symbiote of Osiris from stasis.
Portrayed by: David Abbott
Cross Reference: Curse of Osiris, Sarah Gardner, Isis, Daniel Jackson, Osiris, Steven Rayner
Episode Reference: The Curse