10 Best Stargate SG-1 Guest Performances

Yep, Smallville's Lois Lane guest-starred in an episode of Stargate SG-1 as the homely next-door neighbour of Teal'c when he attempted to move off-base. Her drunken, abusive boyfriend is something of a problem for Krista, and Teal'c, being a good neighbour, dissuades him from coming around. Unfortunately, Krista is used to the abuse and continually takes her boyfriend back, despite growing closer to Teal'c.

Teal'c is also under surveillance by a group from The Trust, who are trying to exploit the situation so that they can kidnap Teal'c and Dr. Daniel Jackson. Eventually, Krista runs to Teal'c's arms and urges him to go on an impromptu road-trip. Concerned for her safety, Teal'c accompanies her, then they are kidnapped by the Trust. Sam Carter's new boyfriend, police officer Pete Shanahan, is able to figure out about the sting, however.

Unfortunately, the Trust are slippery and manage to make it out with what they came for, an obscure translation from Daniel. They escape before Sam, Pete and a tactical team can get to them. Teal'c is ordered to move back on base and drives away from Krista in the end.

Since the Stargate shows and Smallville were filmed on lots that were practically adjacent, there are hundreds of supporting parts that appear on both shows as minor or guest actors, but this is the only time a starring member of either would be a guest in each other's show.