Mark Haverford (born 2001) is a Canadian actor, paranormal investigator, stuntman, musician and author best known for his portrayal of Devon Ketrzyn on the television and YouTube series, Devon and Trenton and his portrayal of Albinus Kowalczyk on DLUN. He is also well known for his main role as "the new Johnny Knoxville" on the renewed version of Jackass.

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