Karl Urban as Judge Dredd

Olivia Thirlby as Cassandra Anderson

Lena Headey as Ma-Ma

Wood Harris as Kay

Langley Kirkwood as Judge Lex

Tamer Burjaq as Ma-Ma Bodyguard

Joe Vaz as Big Joe

Rakie Ayola as Chief Judge

Junior Singo as Amos

Luke Tyler as Freel

Jason Cope as Zwirner

Domhnall Gleeson as Clan Techie

Warrick Grier as Caleb (uncredited)

Rachel Wood as Control Operator 1

Andile Mngadi as Passenger (uncredited)

Porteus Xandau as Driver (uncredited)

Emma Breschi as Hostage (uncredited)

Shoki Mokgapa as Woman with Child (uncredited)

Yohan Chun as Girl in Window (uncredited)

Eden Knowles as Girl in Window (uncredited)

Desmond Lai Lan as Homeless Man (uncredited)

Deobia Oparei as Paramedic TJ (uncredited)

Patrick Lyster as Control Operator 2 (uncredited)

Travis Snyders as Slo-Mo Junkies (uncredited)

Scott Sparrow as Japhet (uncredited)

Marty Kintu as Big Joe Gang Member (uncredited)

Nicole Bailey as Cathy (uncredited)

Daniel Hadebe as Judge at Entrance (uncredited)

Francis Chouler as Judge at Entrance (uncredited)

Edwin Perry as Judge Alwarez (uncredited)

Karl Thaning as Judge Chan (uncredited)

Michele Levin as Judge Kaplan (uncredited)

Chad Phillips as Slo-Mo Junkie

Brandon Livanos as Member of the Coyote Gang (uncredited)