Mario & Sonic Guy
Old rivalries live on!
To be fair, K. Rool did develop a cartoonish voice when Toshihide Tsuchiya started portraying him. So in a way, K. Rool is in the same position as Donkey Kong, Diddy Kong, and Bowser in that his Smash Ultimate voice does not stay true to how his voice is portrayed in the Donkey Kong titles, along with the Mario spin-offs.Yeah, I would have loved for K. Rool to have the DKC trilogy SFX, but I expected him to have generic reptile noises. At least it's consistent for the DK franchise in Smash. Unlike a certain other reptilian king and his son.
The whole Mario universe tends to follow a cartoonish vibe anyway. Ridley, however, is from a more realistic universe, so it's understandable why he sounds like a realistic beast.