There’s a new favourite cast member on Stranger Things and it’s metalhead and Dungeons & Dragons freak Eddie Munson – he’s loud and brash, intense and geeky, a rocker, a charmer, and has a bit of a soft heart, too. He’s the latest addition to the gang and the most welcome surprise for the series’ fourth season. But what about the actor who plays Munson – Joseph Quinn? Here’s what we know about the British breakout star so far … He’s actually British and is 29 years old Unlike his character Eddie, who is American, hailing from Indiana, and estimated…