[4][5][6] Cook's career started on the Channel 5 sketch series, The Jerry@Trick show with the alternative comedians Phil Nichol and Boothby Graffoe.

Recent television credits include: Ragdoll for AMC, Mr Selfridge, the role of the villainous Patrick in multiple episodes of Emmerdale in 2016 and the German officer in the BBC's 2018 adaptation of Agatha Christie's The ABC Murders.

[12] Cook stars alongside Katherine Parkinson and Jay Pharoah in 2018's How To Fake A War, directed by Rudolph Herzog and produced by Film and Music Entertainment.

[13] In 2011 he appeared in Outside Bet, directed by Sacha Bennett, alongside Bob Hoskins, Phil Davis and Jenny Agutter.

[14] Cook has written and performed three critically acclaimed sell-out Edinburgh solo shows: A Touch of Vegas (2008),[15] Pieces of Strange (2010),[16] and Principles and Deceptions (2011)[17]