This was the night Farrell filmed the show’s shocking finale, which sees his character Oswald Cobb murder beloved mentee Victor Aguilar (Rhenzy Feliz).

"The Penguin" finale finds Colin Farrell's gangster ascending to power in Gotham City and losing "any semblance of decency" he had left, Farrell says.

And yet, there was one kill — one final murder in The Penguin Series Finale, Episode 8 “A Great or Little Thing” — that seemed absolutely beyond the pale. A moment where Oswald Cobb completely shed himself of all vestiges of humanity and truly transformed into a Batman villain.

HBO’s ‘The Penguin’ (starring Colin Farrell, Cristin Milioti and Rhenzy Feliz) is a cocktail of wealth inequality, narcissism and misplaced rage, just like ‘The Batman.’

This article contains major plot details from the finale of HBO's"The Penguin," now streaming on Max. In the pantheon of television spinoffs of blockbuster films, "The Penguin" is an extraordinary achievement.