In an interview, Farrell shared, “I was somewhat bigger when I met [Reeves], and he liked the weight that I had on for a TV series called ‘The North Water.’ I played a whaler and I put on quite a bit of weight. And Matt was like, ‘Oh, yeah, I love it. I think that’s Oz!’ And I was like, ‘Nah, man, let’s have a thin Oz because I’m not feeling great now, I have to lose this weight.”