Encontrei o artigo original com a imagem; é Sam, interpretado por Robin Lord Taylor (ênfase minha):
We gathered these unlucky souls together to pay tribute to their characters and time on the show while they were in Orlando, FL last June at a Walker Stalker convention, and the result is the photo you see below.
Included from left to right are Madison Lintz (Sophia), Kyla Kenedy (Mika), Jeryl Prescott (Jacqui), Brighton Sharbino (Lizzie), Chad L. Coleman (Tyreese), Tyler James Williams (Noah), David Morrissey (The Governor), Emily Kinney (Beth), IronE Singleton (T-Dog), Lawrence Gilliard Jr. (Bob), and Robin Lord Taylor (Sam).
É fácil esquecê-lo, porque ele mudou de cabelo desde que deixou o programa (presumivelmente para Gotham , onde Taylor interpreta o pinguim):