If I've heard it once, I can recognize any voice even years later. The more I hear a voice the better, obviously. It'll drive me crazy until I look it up and confirm suspicions. On the rare occasion I get false positives from people who have similar pitch and patterns but overall I can identify an acquaintance, voice actor, celebrity, etc, across many different media even if they are playing different roles. I never forget a voice. I don't know why.

Perhaps related, I can do a fair number of accents and mimic famous character speech patterns. It's super silly.