Rob Letterman Director, Screenwriter Ryan Reynolds Detective Pikachu Voice Justice Smith Tim Goodman Actor Kathryn Newton Lucy Stevens Actor Bill Nighy Howard Clifford Actor Ken Watanabe Lieutenant Hide Yoshida Actor Chris Geere Roger Clifford Actor Suki Waterhouse Ms. Norman Actor Josette Simon Grams Actor Alejandro De Mesa Bartender Actor Rita Ora Dr. Ann Laurent Actor Karan Soni Jack Actor Max Fincham Young Tim Goodman Actor Simone Ashley Girlfriend Actor Edward Davis Boyfriend Actor Diplo DJ Actor Omar Chaparro Sebastian Actor Ben Fox Lead Cop Actor Kadiff Kirwan Mayor Actor Ryoma Takeuchi Male Pokémon Trainer Actor Rina Hoshino Mewtwo Voice Kotaro Watanabe Mewtwo Voice Ikue Ōtani Pikachu Voice Dan Hernandez Screenwriter Benji Samit Screenwriter Derek Connolly Screenwriter Mary Parent Producer Cale Boyter Producer Hidenaga Katakami Producer Don McGowan Producer Joseph Caracciolo Jr. Executive Producer Ali Mendes Executive Producer Tsunekazu Ishihara Executive Producer Kenji Okubo Executive Producer Toshio Miyahara Executive Producer Hiro Matsuoka Executive Producer Koji Ueda Executive Producer John Mathieson Cinematographer Mark Sanger Film Editing James M. Thomas Film Editing Henry Jackman Original Music Nigel Phelps Production Design Suzie Harman Costume Design Shira Hockman Art Director Lisa Chugg Set Decoration Sarah Halley Finn Casting Jina Jay Casting