Mr. Garrison

4th Grade Teacher at South Park…

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Herbert Garrison (temporarily Janet Garrison; after a sex-change operation that was later reversed), is a 4th grade teacher at South Park Elementary. He first appears in the Season One episode, "Cartman Gets an Anal Probe", and is voiced by Trey Parker. Mr. Garrison became a 4th grade teacher after the death of Diane Choksondik. Mr. Garrison was a man throughout the first eight seasons of South Park until "Mr. Garrison's Fancy New Vagina", where he received gender...