Red Dead Redemption 2 actor says the hardest part about playing Arthur was the crouch-running: "3 days later my thighs were absolutely killing me"

Arthur Morgan in Red Dead Redemption 2.

The hardest thing about portraying Arthur Morgan in Red Dead Redemption 2, according to actor Roger Clark, was the process of motion capturing the crouch-running animation.

"People often ask me what was the hardest thing about Red Dead 2 and I'll tell them it was crouch running," Clark said in an interview with Gamology (timestamped here). "Because we crouch-ran for, I think, a couple of days. Because you gotta crouch run, walk, stealth, run with one gun, run with two guns, then you gotta crouch-run with a rifle. Like, three days later my thighs were absolutely killing me."