The voice actor doing this dubbing is called Yasuhiro Mamiya, He's also the voice of Gibraltar in APEX and Adler in BOCW, so if u're interested, please give him a listen:)
Nikolai's Japanese voice actor is Yasuhiro Mamiya(間宮康弘). He also provides the voice for Gibraltar in **APEX Legends and Montagne in Rainbow Six Siege, and interestingly, he seems to have a lot of roles involving shield operators.
3:10 funfact: golden ball(金玉) means "nuts" in JPN slang. and Sub didn't display about golden ball. Nikolai's JPN actor is so funny guy and love ad-lib like this.