Fall TV Preview

Grimm Adds Killing Kennedy Assassin as Mysterious Cop in Season 4

Grimm Season 4 Cast Will Rothhaar

Nick, Hank: Meet your new co-worker.

Will Rothhaar, who portrayed Lee Harvey Oswald in National Geographic Channel’s Killing Kennedy, is joining Grimm as a cop with a dark side, TVLine has learned.

Rothhaar’s Officer Acker will debut in Episode 8 of the NBC drama’s upcoming fourth season, and he’ll be around for at least three episodes.

He joins previously announced Season 4 guest stars Elizabeth Rodriguez (Orange Is the New Black),  Toni Trucks (Franklin & Bash) and Erick Avari (The Mentalist). 

In addition to Killing Kennedy, Rothhaar’s TV resume includes stints on RecklessLast ResortPerceptionCSI and Fringe. He’ll also appear this season on Castle as a hacker and former activist.

Grimm returns Friday, Oct. 24, at 9/8c.