'Stranger Things' star Joseph Quinn says he felt like a 'sociopath' faking his American accent and had to ask Joe Keery for help

"Stranger Things" breakout star Joseph Quinn had skyrocketed to fame for his performance as Eddie Munson

The metalhead with a heart of gold who joined the cast of characters for season four

But the British actor said that doing an American accent during filming made him spiral a little bit.

"You feel like a sociopath," the actor said on an episode of the "Off Menu" podcast with Ed Gamble and James Acaster (two comedians from the UK).

Acaster had complimented Quinn on his American accent in the show, which prompted the actor to talk about how strange it can feel to be in character.

Quinn also said he spoke with his costar Joe Keery, who plays Steve Harrington, about his worries.