Seth Cohen
Fictional character
Seth Ezekiel Cohen is a fictional character on the Fox television series The O.C., portrayed by Adam Brody. Seth is one of the "core four" characters on The O.C. alongside Ryan Atwood, Marissa Cooper, and Summer Roberts. Wikipedia
Played by: Adam Brody
Spouse: Summer Roberts and Anna Stern
Created by: Josh Schwartz
First appearance: "Premiere"; (episode 1.01)
Last appearance: "The End's Not Near, It's Here"; (episode 4.16)