The Walking Dead season 1 zombie that’s important – Looper

Sam Witwer hasn't become a household name (yet) but these days, he's regarded quite well in geek circles, due to having played notable roles in a long number of popular TV shows. Bit parts aside and he's had a lot of those, appearing in everything from Angel to NCIS perhaps the first place that sci-fi fans might recognize him is from the cult favorite 2004 reboot ofBattlestar Galactica, where he played the Raptor ECOAlex Quartararo, better known by his call sign, Crashdown. While not one of the stars, Crashdown was nonetheless a fairly prominent figure in the show's action scenes, who survived for two seasons before being shot in the backby Dr. Baltar (James Callis).

One of Witwer's biggest roles arrived a few years later, when he starred in Smallville as David Bloome, whom in the series is portrayed as the human alter-ego of the monstrous Doomsday. Yes, that Doomsday. Since then, he has also appeared as Mr. Hyde on Once Upon a Time, Rupert Chipping on Riverdale, and Ben Lockwood (AKA Agent Liberty) on Supergirl. As if that weren't enough geek cred for one performer, he has also become widely recognized as the preferred voice actor forDarth Maul, having voiced the Sith Lord in everything from Star Wars Rebels to that surprise appearance in Solo.

Witwer's short-lived Tank Zombie gig came about a year after his Smallville role, but to be clear, it wasn't intended as a one-shot. In fact, if The Walking Dead's original showrunner, Frank Darabont, had stayed aboard for season 2, Witwer would've had a meatier Walking Dead part ahead of him.

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The Walking Dead season 1 zombie that's important - Looper