Rock (Mega Man) is the hero and protagonist of this story. Originally created to be a lab-assistant programmed to help others, Rock's courage and sense of justice goes beyond his programming making him more than just a robot designed only to carry out simple duties, but a true hero. He's also a very conflicted character as his nature is that of a pacifist, preferring to find a peaceful solution to conflicts, but is pushed into taking up arms against his fellow robots due to the actions of Dr. Wily.
As Rock is designed to be a young boy roughly age 10-13, that's the kind of performance I'll be looking to capture with this series. He should carry all the charisma of an action Shonen Protag, but also a believable child, I feel most takes tend to prioritize one or the other. I'm picturing something similar to his portrayal in Mega Man: Powered Up or Gon from the English dub of HunterxHunter (2011), but feel free to give an original take if you feel it fits the character.
Examples of canon voices: https://youtu.be/r0YEqt2B0_o?si=PNqUr3BSlqVH3I5J&t=108
https://youtu.be/_6s18TixcJ4?si=es_bXEMeUec74ch5
https://youtu.be/atH4u1XOUR4?si=qPjTEemTMwpMs7cB&t=44