- Rachel Anderson
- staff: La Belle Allée
- Bethan Bannister
- investment executive: The Wales Creative IP Fund
- Mary Brehony
- legal services: Scottish Screen
- Stuart Cadenhead
- runner
- Neil Cairns
- accountant
- Ravi Ajit Chopra
- producer/director: BBC Films, behind the scenes feature
- Ruth Coulter
- crowd coordinator
- Bethan Cousins
- fund manager: The Wales Creatice IP Fund
- Victoria Dabbs
- production coordinator
- John Ensby
- laboratory contact: Technicolor London
- Julie Falconer
- unit nurse: Star Nurses
- Julie Foster
- tutor
- Peter Fowler
- marine coordinator
- Joanne Gemmill
- unit nurse: Star Nurses
- Lindsay Goodall
- production secretary
- Anna Griffin
- personal assistant to director
- Claudia Siesbye Halsted
- assistant to producer: Nimbus (as Claudia Siesbye)
- Glynn Henderson
- health and safety officer
- Andy Hodgson
- runner
- Vincent Hunter
- runner
- Paul Imrie
- assistant accountant
- Louise Jacobsen
- legal services: Natixis Coficiné, Per Neumann Aps
- Jacob Jarek
- assistant to producer: Nimbus
- Christopher Key
- editor: making-of documentary
- Lise Krogsgaard
- controller: Nimbus
- Mamie Lang
- chaperone
- Jules MacIver
- unit nurse: Star Nurses
- Allan MacQuarrie
- historical consultant (as Dr. Allan MacQuarrie)
- Emma Mager
- completion guarantee: International Film Guarantors
- Martin Marquet
- publicist
- Jacqui McBride
- accounts assistant (as Jacqueline McBride)
- Linda McClure
- legal service: Scottish Screen
- Leslie Ann McCluskey
- chaperone
- Craig McLaren
- runner
- Christos Michaels
- legal services: The Wales Creative IP Fund, Lee and Thompson Solicitors
- Sarah Morrison
- production runner
- Stephen Murphy
- legal services: The Wales Creative IP Fund, Lee and Thompson Solicitors
- Sandra Nelson
- unit nurse: Star Nurses
- Per Neumann
- legal services: Natixis Coficiné, Per Neumann Aps
- Christian Otty
- floor runner
- Christopher Pavey
- runner (as Chris Pavey)
- Abigail Payne
- legal services: Blind Eye Productions, Harbottle and Lewis
- Saskia Pomeroy
- personal assistant to director
- Luke Randolph
- completion guarantee: International Film Guarantors
- Pernille Norén Rasmussen
- payroll: Nimbus (as Pernille Norén-Rasmussen)
- Katrine Schlüter
- legal services: One Eye Production, Johan Schlüter Law Form (as Katrine Schlüter Schierbeck)
- Bob Smith
- mountain health and safety
- Shellie Smith
- completion guarantee: International Film Guarantors
- Judy Shaw Stewart
- tutor
- Stef Swiatek
- unit nurse: Star Nurses (as Stefanie Swiatek)
- Mette Sø
- researcher
- Ross Thatcher
- chaperone
- Claus Thobo-Carlsen
- head of administration: Nimbus
- Michelle Tierney
- staff: La Belle Allée
- Christophe Vidal
- bank production loan: Natixis Coficiné
- Elaine Walsh
- staff: La Belle Allée
- Jeff Ward
- life guard
- Chick Allan
- team leader (uncredited)
- Huma Khan
- legal post production (uncredited)
- Anna Cameron McKessock
- cast associate (uncredited)
- Eugene Talbot
- personal trainer (uncredited)