When Herr was aged two years old, he moved to St. George, Ontario with his parents. Later on his family got settled at Kingston, Ontario. There he was active in several high school productions. He starred in the play Never Swim Alone in the Sears Drama Festival. After his high school graduation, he moved to Vancouver, British Columbia and there he got enrolled at University of British Columbia and VanArts. He made his acting debut by starring the role of Mark Howe in the CBC production "Mr. Hockey: The Gordie Howe Story". He has also starred in several movies and TV series like Zapped, Seeds of Yesterday, Goon 2: Last of the Enforcers, Mostly Ghostly: One Night in Doom House and so on. In 2016, he appeared in CraveTV series, Letterkenny. His height is five feet and eleven inches tall. His nationality is Canadian and he is of white ethnicity. His net worth is unknown.