Jessie O'Neil is a fictional character portrayed by Shawnee Smith in the TV series The X-Files.
In the first episode they appeared in, titled Firewalker (season 2), they were 25 years old.
They appear in 1 episodes out of a total of 217 aired
Episodes1
Firewalker
episode S2.E9 november 1994At a remote outpost, scientists watch as their camera picks up a moving shadow on the inside of a smoldering hot volcano, too hot for any living creature to survive. Mulder and Scully arrive and notice that everyone is acting strangely.