I love his barely audible background noises. The classroom bit where he goes "ricky squoze me head" "how do you spell that" *ricky bursting in the background
7:54 Karl’s voice acting is actually great. “You’re gonna have a coffee aren’t you?” He’s actually a very believable natural actor, I think because he sounds genuinely like he’s busy with his own life while he’s acting, like a good actor sounds convincingly like they’re really that person living that life.