Michaela Dietz is an American voice actress born on November 1, 1982, in Incheon, South Korea. She was adopted at three months old and raised in Cooperstown, New York. She studied International Studies at Middlebury College.'

     She is best known for voicing Amethyst in Steven Universe and its sequel Steven Universe Future. She also voiced Riff in Barney & Friends, Dolly Dalmatian in 101 Dalmatian Street, Vee in The Owl House, Darryl McGee in The Ghost and Molly McGee, and Glass Boy in Adventure Time: Distant Lands – Obsidian.

     Dietz has worked on video games, voicing Pita in Fallout 76, Jennifer in Fairfax, and characters in Grand Theft Auto V and Lego Dimensions. She also voiced Tomas in The Witcher: Nightmare of the Wolf. In Star Trek: Prodigy, she voices Tysess, a Tellarite Starfleet officer