Colin Farrell put on layers of prosthetics, costumes, and mannerisms to portray Oswald “Oz” Cobb in the 2022 superhero feature The Batman and its HBO spin-off The Penguin. So, he is probably one of the best people to understand the psychology of his character.

Farrell’s physicality matches his minutely calibrated vocal rasp as Oz. He’s not recognizable as Colin Farrell but in this world of deception and shadows, the casting works. And for all the low-light nightclub murmuring going on,

The cast and crew of the new HBO series talk in great detail about how Colin Farrell transformed on-screen, physically and artistically, into becoming Oswald "Oz" Cobbs.