Guillermo del Toro Director Charlie Hunnam Raleigh Becket Actor Diego Klattenhoff Yancy Becket Actor Idris Elba Stacker Pentecost Actor Rinko Kikuchi Mako Mori Actor Charlie Day Dr. Newton Geiszler Actor Burn Gorman Gottlieb Actor Max Martini Herc Hansen Actor Robert Kazinsky Chuck Hansen Actor Clifton Collins Jr. Tendo Choi Actor Ron Perlman Hannibal Chau Actor Brad William Henke Construction Foreman Actor Larry Joe Campbell Construction Worker Actor Mana Ashida Young Mako Actor Joe Pingue Capt. Merrit Actor Milton Barnes McTighe Actor Travis Beacham Screenwriter Thomas Tull Producer Jon Jashni Producer Mary Parent Producer Callum Greene Executive Producer Guillermo Navarro Cinematographer Peter Amundson Film Editing John Gilroy Film Editing Andrew Neskoromny Production Design Carol Spier Production Design Ramin Djawadi Original Music Kate Hawley Costume Design Elinor Rose Galbraith Art Director Margery Simkin Casting Andrew Li Art Director Sandi Tanaka Art Director