Ed Harris

Ed Harris joinsWestworldas the Man in Black.

Thandie Newton

Thandie Newton joinsWestworldas Maeve Millay.

Jeffrey Wright

Jeffrey Wright signed on to playWestworld’s Bernard Lowe.

Anthony Hopkins

Courtesy Everett Collection; John P. Johnson/HBO

The actor’s other early roles include 2000s turns inRose Redand24.

Rodrigo Santoro

Rodrigo Santoro becomes Hector Escaton inWestworld.

Shannon Woodward

Shannon Woodward took on the role of Elsie Hughes inWestworld.

Ed Harris

Associated Film Distribution/Getty Images; John P. Johnson/HBO

Ingrid Bolso Berdal

After making her debut in the 2000s, Ingrid Bols Berdal plays Armistice inWestworld.

Pictured above in 2012, Berdal picked up early work in Norwegian films.

Ben Barnes

Westworldfound its Logan in Ben Barnes.

Evan Rachel Wood

NBC/NBCU Photo Bank via Getty Images; John P. Johnson/HBO

Sidse Babett Knudsen

Sidse Babett Knudsen appears as Theresa Cullen inWestworld.

Pictured above inWith Your Permission, the actress picked up her early work in Danish TV shows and films.

James Marsden

John P. Johnson/HBO

Thandie Newton

Samuel Goldwyn Films/Courtesy Everett Collection; John P. Johnson/HBO

Jeffrey Wright

Ron Galella/WireImage; John P. Johnson/HBO

Jimmi Simpson

Columbia Pictures/Courtesy Everett Collection; John P. Johnson/HBO

Rodrigo Santoro

Evan Agostini/Getty Images; John P. Johnson/HBO

Shannon Woodward

Fox; John P. Johnson/HBO

Ingrid Bolso Berdal

Gregg DeGuire/WireImage; John P. Johnson/HBO

Ben Barnes

Murray Close; John P. Johnson/HBO

Angela Sarafyan

Michael Germana / Everett Collection; John P. Johnson/HBO

Sidse Babett Knudsen

Nordisk Film Biografdistribution/couresy Everett Collection; John P. Johnson/HBO