The only other living Metallix model, and the only Metallix Knuckles to survive testing, Metal Knuckles is straightforward, focused, and driven. He is the Determinator of the team, and will do whatever it takes to get the job done. We're actually not quite sure if he and Metal Sonic hate each other or are best friends. It's a bit hard to tell with them.
Fan Casting
Jess Harnell
Tim Minchin
Bobbi Salvör Menuez
Alasdair Beckett-King
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