Cast: Elizabeth Mitchell

Even though some news sources are claiming that Elizabeth Mitchell will only be a guest star, the role of homeland security agent Erica Evans is a huge role for the series and could mean the end of her run on LOST as Juliet.

Erica Evans will not only face a new mystery with the Visitors - her son, Tyler, might become involved with them, much like Daniel Bernstein did in the original series. Stay tuned...