Lol - and he doesn't even have a good American accent (let alone a good Chicago accent - and I'm British... I don't even know what a 'good' Chicago accent is supposed to sound like). I definitely heard some of his native northern English accent creep in in the middle of the episode though.

I hadn't heard of Lucien before he was announced in the spinoff, but turns out he's been doing the rounds of high school-based dramas and soaps in the UK for the last few years, playing teenage parts only. He's also a failed pop star and a reality TV star, apparently taking part in Celebrity Big Brother a couple of years ago (not quite sure how he classes as a celebrity though).