Beta's Best Friend (TV Series)

"Beta's" Walker is a walker that is seen in "We Are the End of the World". He knew "Beta" before the apocalypse but as to what their relationship was is unknown.

Pre-Apocalypse
Nothing is known about him before the apocalypse aside from the fact that he knew Beta.

Post-Apocalypse
He survived alongside Beta for sometime in the apocalypse until he died. When he died, Beta kept him locked up as a walker.

"We Are the End of the World"
This zombified man is being kept locked up by Beta, possibly as he doesn't want to lose his sole reminder to how life was before. After Alpha kills this zombified man, Beta takes the upper half of his face to use as his mask. He also takes his shirt and wears it as well.

Death
This man died due to unknown causes. He eventually reanimated and was kept locked up by Beta. Alpha, seeing this zombified man is about to bite Beta, kills him.
 * Unknown Causes
 * Alpha