Bill Nighy (Johnny Worricker) can be seen to handle objects and shake hands with just his thumb, index and middle fingers. This unusual grip is because he suffers from Dupuytren's contracture, which means he can't straighten the ring and little fingers on his hands.
On working with actor Bill Nighy, actor Christopher Walken said: ''Yes I was very aware of Bill and I'd met him before briefly. I've always admired him and when I heard that he was doing the films, I was in. I think to spend time with terrific actors is part of what this job is all about. I used to be a dancer so I compare it to dancing. You have a partner and you move together, and Bill is very quick, generous and responsive.''
On being cast in Turks & Caicos (2014), actress Winona Ryder said: ''I was sent the script with a letter from [writer-director] David [Hare], that I promptly framed and is now hanging on my wall in New York, and it was just brilliant. It was a no-brainer as an actress.'' She added: ''It was an enormous compliment and it meant the world to me. A gesture like that from someone like him was overwhelming. It was actually one of the very few times in my life where I called up my agent to say, 'I don't even have to read it, tell them yes!'. Of course reading it was amazing, but you just know David's name is only associated with the best.''
Writer-director David Hare said of Christopher Walken, "Christopher Walken did one scene where he's sitting on the balcony, he just talks about Turks & Caicos being a home for dirty money and it made me cry. I just sat there and thought, 'well, I'm never going to hear my work better spoken than that'. That for me was a high point. It's always going to be about the acting. The pleasure of being a screenwriter is a pleasure that makes no sense until the actor arrives. You've got nothing without the actor."
The name given by Johnny Worricker for his imaginary father, 'Clifford', is the real name of the father of the film's writer, David Hare.
Ralph Fiennes: As Prime Minister Alec Beasley. Writer-director David Hare said: ''I particularly enjoyed filming in Turks & Caicos and of having the fleeting appearance of Ralph Fiennes in this film. Ralph is the principal character alongside Bill in the third film ['Salting the Battlefields'] playing the Prime Minister, but in 'Turks & Caicos' he appears in one shot only. Apart from anything I greatly enjoy the weight of making a film in which you see Ralph Fiennes in one shot only, one of our greatest British screen actors - in a single scene!''.