Arthur the King

An unexpected encounter. An unlikely bond. An unforgettable adventure.

Over the course of ten days and 435 miles, an unbreakable bond is forged between pro adventure racer Michael Light and a scrappy street dog companion dubbed Arthur. As the team is pushed to their outer limits of endurance in the race, Arthur redefines what victory, loyalty and friendship truly mean.

Adventure Drama

Mark Wahlberg

(Michael Light)

Simu Liu

(Leo)

Juliet Rylance

(Helen Light)

Nathalie Emmanuel

(Olivia)

Ali Suliman

(Chik)

Bear Grylls

(Bear Grylls)

Paul Guilfoyle

(Charlie Light)

Rob Collins

(Decker Swanson)

Alani iLongwe

(John)

Cece Valentina

(Ruby)

Roger Wasserman

(Santiago)

Oscar Best

(Hugo)

Theodore Johns

(Studio Photographer)

Jonathan Lopez

(Photo Studio Personal Assistant)

Michael Landes

(Broadrail Executive)

Angie Berube

(Broadrail Executive)

Andrés Castillo

(Broadrail Executive)

Luke Grozenski

(Beach Kid)

Luis Bryan Mesa

(Busboy)

Carlos Alfonso Rodriguez Tejada

(Bellboy)

Raúl Grisanty

(Race Organizer)

Anthony Thomas

(Transition Area One Race Official)

Clara Alexandra Hinojosa

(Local Woman)

Sharon Gallardo

(Medic)

Raymond Jaquez

(Race Photographer)

Ricardo Ernesto Bonnet

(River's Edge Race Official)

Luis del Valle

(Dominican Veterinarian)

Elizabeth Chahin

(Susan)

Héctor Sierra

(Preacher)

Twyla Grozenski

(Beach Mother)

Iban Marrero

(Customs Officer)

John Michael Alves

(Airline Employee)

Mario Arturo Hernández

(Airline Attendant)

Christopher Vincent

(Team Arc'teryx Racer)

Shannon Helm

(Team Arc'teryx Racer)

Lawrence Duran

(Team Arc'teryx Racer)

Viktor Åkerblom

(Chief Financial Officer)

Thanhminh Tan Thai

(Baggage Handler)

Ukai

(Arthur)

Jose Guillermo Jimenez Perdomo

(Racer (uncredited))

Zachary Wood

(Photographer (uncredited))