Tom Cruise as Ethan Hunt

Hayley Atwell as Grace

Ving Rhames as Luther Stickell

Simon Pegg as Benji Dunn

Esai Morales as Gabriel

Pom Klementieff as Paris

Henry Czerny as Kittridge

Holt McCallany as Serling

Janet McTeer as Walters

Nick Offerman as General Sidney

Hannah Waddingham as Admiral Neely

Tramell Tillman as Captain Bledsoe

Angela Bassett as Erika Sloane

Shea Whigham as Briggs

Greg Tarzan Davis as Degas

Charles Parnell as Richards

Mark Gatiss as Angstrom

Rolf Saxon as William Donloe

Lucy Tulugarjuk as Tapeesa

Cary Elwes as Denlinger

Katy O'Brian as Kodiak

Stephen Oyoung as Pills

Tomás Paredes as Hagar

Paul Bullion as Shirley

Pasha D. Lychnikoff as Captain Koltsov

Kwabena Ansah as Erika's Son

Ryn Alleyne as Acolyte

Ned Campbell as Acolyte

Charlie Carter as Acolyte

Chantelle Roman as Acolyte

Mark Taqqaugaq as Inuit Fisherman

Ipeelie Ootoova as Inuit Fisherman

Jacky Qrunnut as Inuit Fisherman

Izyan Hay as Nurse

Ross McCall as Agent Boulding

Hugo Salter as Agent Brock

Jess Khan-Lee as Mount Weather - Marine Sergeant

Harrison Daniels as Mount Weather - Marine Sergeant

Alan Calton as Mount Weather - Secret Service Agent

Lorraine Tai as Mount Weather - Secret Service Agent

Tommie Earl Jenkins as Mount Weather - Colonel Burdick

Shamail Ali as Mount Weather - Aide de Camp

Peter Devlin as Mount Weather - Runner

Jude Mack as Mount Weather - Runner

Stefanie Nieuwenhuyse as Mount Weather - Operator

Sydney Cole Alexander as USS George H.W. Bush - Lt. Cmdr. Bennet

Gabriella Piazza as USS George H.W. Bush - Lt. Acosta

Elliot Janks as USS George H.W. Bush - Chief Collins

Martin McDougall as USS George H.W. Bush - Captain

Edem Atsu-Swanzy as USS George H.W. Bush - Navigator

Madeline Day as USS George H.W. Bush - Neely's Aide

Marcin Dorociński as Sevastopol - Captain

Ivan Ivashkin as Sevastopol - Executive Officer

Zahari Baharov as Sevastopol - Deck Officer

Jean Kartal as Sevastopol - Sonarman

Os Leanse as Sevastopol - Sonarman

Mateusz Malecki as Sevastopol - Stern Plane Operator

Jay Saighal as SSGN Ohio - Officer of the Deck

Kyle Abdullah as SSGN Ohio - Chief of the Watch

Isata Kamara as SSGN Ohio - Sonar

Shane Afolabi as SSGN Ohio - Helmsman

Dylan Kussman as SSGN Ohio - Radio

Bridgette Amofah as SSGN Ohio - Crew

Katie Bernstein as SSGN Ohio - Crew

Andrew Prince Boateng as SSGN Ohio - Crew

Stanley Eldridge as SSGN Ohio - Crew

Aisha-May Hunte as SSGN Ohio - Crew

Dominic Leeder as SSGN Ohio - Crew

Sam Lilja as SSGN Ohio - Crew

Lloyd James as SSGN Ohio - Crew

Adrian Muykanovich as SSGN Ohio - Crew

Jacob O'Connor as SSGN Ohio - Crew

Seb Slade as SSGN Ohio - Crew

Nathan Wiley as SSGN Ohio - Crew

René Valius as SSGN Ohio - Crew

John Romain as Gabriel's Henchman

Rene Vrabel as Gabriel's Henchman

Lee Charles as Gabriel's Henchman

Kyle Freemantle as Gabriel's Henchman

Igor Karpovich as Gabriel's Henchman

Mariela Garriga as Marie (archive footage) (uncredited)

Christopher McQuarrie as Passer-by (uncredited)