Zenna Valk

Zenna Valk was a Pangaran scientist attempting to translate the Goa'uld hieroglyphs on the walls of the ruined Goa'uld temple on Pangara. Upon the arrival of SG-1 on Pangara, she showed Jonas Quinn and Teal'c around the temple, and was delighted to accept their offer of assistance with her translation. Before they left, she delivered a cryptic warning about her civilization's wonder drug, tretonin, which she later denied giving. Her strange behavior led Jonas and Teal'c to break into the tretonin treatment facility and discover that the drug was made from symbiotes.

She was present for the discovery that the Goa'uld Queen the Pangarans were using to make tretonin was in fact Egeria, Queen of the Tok'ra. Though this discovery led to the sudden halt in tretonin production, and Valk seemed concerned that her race had learned nothing from the situation they now found themselves in. Upon revealing her fears to Jonas--whom she seemed to share a mutual attraction with--he was able to cheer her up.

Behind the scenes
Allison Hossack also played Perna in the Atlantis episode "Poisoning the Well."