In last Sunday's episode Lorne MacFadyen, who plays Lieutenant Matthew Doward, was revealed as the Russian spy on board the submarine HMS Vigil. In a cliffhanger ending, the episode finished with him knocking out DCI Amy Silva, played by Suranne Jones, and putting her into a torpedo tube which he subsequently filled with water. MacFadyen has revealed that the punch at the end of the episode resulted in his shoulder popping out from his socket!
Lorne also revealed that only himself and director James Strong knew that he was the villain, meaning other cast members were also in the dark, so they treated him no differently. Strong used the same technique when he directed Broadchurch. Lorne said "He didn't tell anyone who the killer was - and that sort of informed the actors' decisions, in that people didn't react to me differently on set". He also said it was really fun to see everyone's reactions week-to-week and to hear everyone's theories about who was the traitor.
He went on to say that keeping the secret helped him get into character, giving him a sense of isolation and an insight into the solitary life lived on board a submarine.
He also talked about how much fun it was keeping the secret from his friends and family, saying ""Even sitting with family and friends and my girlfriend, watching it now, and them turning to me and going 'you didn't tell me that' - that's really satisfying".
Vigil concludes on BBC One at 9pm on Sunday 26th September, and is also available on BBC iPlayer.
Lorne and Anjli are available for voiceovers from Anthea Represents, click their images for their profile pages & voiceover showreels.