The series three finale saw the squabbling siblings Kendall (Jeremy Strong), Shiv (Sarah Snook) and Roman (Kieran Culkin) finally settle their differences to unite against their tyrannical patriarch Logan Roy (Brian Cox). Although, they were unable to stop the sale of the family's media conglomerate to tech magnate Lukas Matsson (Alexander Skarsgård).

The trailer sees it edge ever closer, provoking existential angst and more familial division among the Roys as they try to anticipate what their lives will look like if and when the deal is completed.

Alongside the regular ensemble, including Alan Ruck, Matthew Macfadyen, Nicholas Braun and J. Smith-Cameron, Sky has announced new cast members.

Joining them are Annabeth Gish, Adam Godley, Eili Harboe and Jóhannes Hakur Jóhannesson.

The newly announced returning cast includes Harriet Walter as the stone-cold mother Roy, Lady Caroline Collingwood, James Cromwell as Ewan Roy, Logan's estranged brother and moral antithesis, as well as Natalia Gold as Rava Roy, Caitlin Fitzgerald as Tabitha, Ashley Zukerman as Nate Sofrelli, Larry Pine as Sandy Furness, Mark-Linn Baker as Maxim Pierce and Pip Torrens as Peter Munion.

Series four of Succession will air on Sky Atlantic and NOW from 27 March.