Ser Forrest Tarly is an unknown character in Game of Thrones. He is descended from the main branch of House Tarly. He currently lives in the Vale.
Forrest is one of the Knights escorting Lord Petyr Baelish and Sansa Stark to Winterfell. When Brienne of Tarth tries to take Sansa with her, Forrest is quick to flee with Sansa.
Forrest stays in Winterfell until Lord Baelish leaves for Kings Landing, but is sent back to the Vale to watch over Lord Robin Arryn.