Cristin Milioti has become the first actor to join Colin Farrell in the upcoming HBO Max series 'The Penguin'.

Milioti will star as Sofia Falcone, the daughter of Gotham mob boss Carmine Falcone. John Turturro played Carmine in 'The Batman,' with The Penguin serving as his right-hand man.

Having been introduced to the comic books in the mid-90's, Sofia has been portrayed once before on-screen by Crystal Reed in the Fox series 'Gotham'.

The series was officially greenlit back in March while 'The Batman' was still in cinemas.

Milioti starred in the 2020 comedy 'Palm Springs' alongside Andy Samberg. She has also starred in the 'Fargo' series, 'Black Mirror' and 'The Wolf of Wall Street'.

The plot for 'The Penguin', a spinoff of the 2022 movie, is still under wraps. However, it's understood that the series starts during the immediate aftermath of the events of the film.

Farrell told ExtraTV last month that the new show will pick up a week after the events of 'The Batman', which saw Gotham City flooded following a terrorist attack plotted by the Riddler.

"I read the first script for the first episode and it opens up with my feet splashing through the water in Falcone’s office. Even just that alone when I read it, I thought, 'Oh jeeze!'".

Speaking last month, Farrell also said the series is "so tasty and so unusual."

In August Warner Bros. announced a multi-year, first-look deal with Matt Reeves and his company 6th and Idaho. With a sequel to 'The Batman' also in the works, there's be plenty more Gotham coming to our screens over the next few years.