I've actually ran into the online credits not matching up with the voice actors memory a couple of times.
First was Michael Dorn, who might still be credited online as voicing a growling Hatchet in DOTM. He flat out told me that he didn't even read for DOTM and certainly didn't do any voices
Other was Alan Oppenheimer, but his was more of him being uncertain. I made a print of Breakdown for him to sign and he told me he didn't remember doing the character
In the end we both agreed that the internet could have had it right and he signed it for me.