Millie DonaldsonActingNo biography available.Known ForWhen You Hear Hoofbeats2026Fan ClubNo Nerds have favorited Millie Donaldson yet — be the first.All fan clubsFrom NerdspinFilmographyActor3Writing1Directing1Costume & Make-Up1Upcoming12026When You Hear HoofbeatsFilmNell2024Boy Swallows UniverseTVShelly Huffman • 2 episodes★ 7.32016Jack IrishTVStreet Kid • 1 episodes★ 6.5