Bart J. Mixon was a special makeup effects artist who worked in the additional photography of Guardians of the Galaxy, the episodes Emancipation, Absolution and Ascension of Agents of S.H.I.E.L.D. and Guardians of the Galaxy Vol. 2.
- Bart Mixon worked as a makeup artist on Man in Black II, Hellboy, Fantastic Four, X-Men: The Last Stand, Hellboy: The Golden Army, Dragonball Evolution, and Man in Black 3. He also worked with Paul Bettany in Priest.
- Bart Mixon worked on one episode of Fear the Walking Dead.