That Time I Got Reincarnated as a Slime - Extra: Hey! Butts! is a 2019 OAD that serves as a side story to That Time I Got Reincarnated as a Slime. It premiered in Japan on December 4, 2019. FUNimation Entertainment produced an English dub of the OAD, which premiered on the FunimationNow streaming service on November 13, 2020.
English Voice Cast[]
- Brittney Karbowski - Rimuru Tempest
- Michelle Rojas - Shion
- Tia Ballard - Shuna
- Kristen McGuire - Milim Nava
- Ricco Fajardo - Benimaru
- Ian Sinclair - Souei
- Kent Williams - Rigurd
- Charlie Campbell - Hakuro
- Tyson Rinehart - Ranga
- Austin Tindle - Gabiru
- Brandon Potter - Vesta
- Mallorie Rodak - Great Sage
- Jamie Marchi - Treyni
- Eric Vale - Kurobe
- Cris George - Geld
- Phil Parsons - Garm
- Patric Carroll - Kakushin
- Ricco Fajardo - Yashichi
- Garret Storms - Sukero
- Caitlin Glass - Souka
- Ryan Reynolds - Gobta
- Josh Martin - Myrd
- Derick Snow - Rigur