Malikai, an archaeologist, had been making visits to the deserted planet P4X-639 for some time, researching the alien machine he had found there. His wife had died 12 years ago of a congenital heart weakness, and his hope was to find a way to use the device to go back in time to be with her once more. However, his efforts inadvertently caught Earth and 13 other worlds in a continuous time loop until he was convinced by SG-1 to abandon his quest.
Portrayed by: Robin Mossley
Episode Reference: Window of Opportunity