Castor Chatham was part of Cressida Dormouse crew. He was originally from the Capitol but joined the rebels in the Second Rebellion. Castor was really close with Pollux
District 8[]
Castor was there when Katniss was being filmed by Messalla.
Death[]
When everybody thought that Katniss Everdeen was dead they decided to go through the sewers. There Castor was devoured by lizard mutts.