Ser Colen of Greenpools is a knight from Greenpools. He is grizzled, with a grey beard. His coat-of-arms has bluejays.
Ser Colen meets Lady Catelyn Tully's party at the head of Renly Baratheon's outriders. He escorts Catelyn to Renly's camp at Bitterbridge, where they see the end of a great melee.