Probably Pewdiepie.
Terraria Community Forums
Dakota Spine
I always just kind of assumed he was more jumpy, or being a bit louder about it felt normal to him. I never assumed any of them were faking it. Like if they play horror games. Fear is fear.
Techhunter_Talon
You didn't know? At least in Pewdiepie's case, he really blows it out of proportion. Markiplier does too but to a lesser extent.
Confusion = True
So is curiosity.