Jack O'Connell is an English actor. He first gained recognition for playing James Cook in the British television series Skins. He is also known for his roles in This Is England (2006), the slasher film Eden Lake (2009), the television dramas Dive (2010) and United (2011), and the Netflix wild west miniseries Godless (2017), for which he received a Critics' Choice Television Award nomination.

James Cook, known as Cook, to his friends, is a fictional character in the British teen drama Skins. He is portrayed by Jack O'Connell. In the third series, his true emotions are explored and it is revealed that his womanizing violent lifestyle is in fact a smoke screen to cover up his real emotions. His actions often cause trouble and create havoc, affecting those around him. However, in the fourth series, he begins to change his ways after a conversation with his solicitor and when he begins to realize the consequences of his actions, most notably witnessing his younger brother beginning to follow in his footsteps. His life is then taken in a wholly other direction when he investigates the disappearance of his best friend in series four's final episodes.