Scientist stationed with the initial Atlantis expedition into the Pegasus Galaxy. Following a massive hurricane that nearly destroyed the city, Dumais ventured into the upper level storage room on a flooded pier of Atlantis. Determining it was safe, she returned with this information to Dr. Rodney McKay, who was leading the group.
Dumais was the third individual to be infected, and third to die, from a hallucinatory virus. Dr. Biro examined her body afterward, discovering she was killed by a ruptured saccular brain aneurysm above the visual cortex.
Hot Zone - Dumais is the third to fall victim to the hallucinatory virus that has begun to run rampant from one member of the expedition to the other.