The answer to this question is yes and no. Bingo and Rolly’s voices did change on Puppy Dog Pals, but not in the way that many people would have expected.
In fact, the change was more subtle than that.
Firstly, Bingo’s voice became more high-pitched. This was likely due to the fact that he was now constantly excited and anxious due to his new surroundings and the new people he was interacting with.
Rolly’s voice remained relatively the same, but he began to vocalize more often in a baritone register. This may have been due to his new role as the responsible adult in the pack.
Overall, while Bingo and Rolly’s voices did change on Puppy Dog Pals, it wasn’t as dramatic as one might have thought. The characters still retained their personalities and their unique voices, which made them just as lovable as ever.