Playing an undead character named Bob in Season 3’s Xander-centric episode “was my first foray into being a zombie. And I had Abraham hair,” Michael Cudlitz says, referencing the large, red ‘do his "The Walking Dead" character later sported, “so you do the math on that.”

Fun fact: Todd McIntosh, who is makeup department head on Cudlitz’s current series "The Kids Are Alright" also was makeup supervisor on "Buffy", and therefore involved in Cudlitz’s Sunnydale zombie lewk, though it took the pair a while to figure out where they’d worked together before.

https://tvline.com/gallery/michael-cudlitz-photos-the-walking-dead-lost-southland/#!5/cudlitz-buffy-the-vampire-slayer/