The English cast has been announced for the Mysterious Girlfriend X anime:
- Genevieve Simmons is Mikoto Urabe
- Josh Grelle is Akira Tsubaki
- Greg Ayres is Kohei Ueno
- Carli Mosier is Yoko Tsubaki
Additional voices will be provided by: Hayley Adams, Christopher Ayres, Clint Bickham, Kalin Coates, Tiffany Grant, Jason Grundy, Houston Hayes, Connor Leach, Margaret McDonald, Jeremy Merritt, Carli Mosier, Chris Patton, Tiffany Terrell, and David Wald.
Christopher Ayres is directing the dub.