Michaela Dietz

Later career Dietz has voiced ongoing characters in two American children's animated TV series, Riff in Barney & Friends and Amethyst in the Steven Universe franchise. However, her role as Amethyst was the first time she had voiced an animated character. In 2019, she voiced Amethyst in the TV film, Steven Universe: The Movie, a continuation from the Steven Universe animated series. She reprised the role in a 2021 anti-racism PSA by Rebecca Sugar and Ian Jones-Quartey.

She has since gone on to voice several characters for Disney, such as Dolly Dalmatian on 101 Dalmatian Street, Vee on The Owl House, and Darryl McGee on The Ghost and Molly McGee. She also voiced Glass Boy in the Adventure Time: Distant Lands episode "Obsidian", and Danelda in two episodes of Mighty Magiswords.

She also voiced Blue Behemoth in Kid Cosmic, and Dottie in two episodes of Tuca & Bertie. Additionally, she voiced various characters in Monsters at Work, Jennifer in an episode of Fairfax, and Michelle Green in four episodes of Craig of the Creek. She recently voiced Ariel in the 2022 episode, "Ariel Force One", of Middlemost Post.

She also voiced characters in video games such as Grand Theft Auto V, Fallout 76: Wastelanders, and Lego Dimensions.

In 2021, she voiced Tomas in the film, The Witcher: Nightmare of the Wolf. The previous year she provided narration for a series of narrated videos which were part of a Cartoon Network digital series celebrating Asian American and Pacific Islander Heritage Month.

In 2025, Dietz voiced Hannah Schwooper in Long Story Short. She also voiced Bex in Super Duper Bunny League.

Filmography Film Year Film Role Notes 2005 Discover Me Ellie2009 Red, Black & Blonde Auditioning Dancer #1 Short K-Town Interracial Couple #3 2012 Totally Smooth Sherry Short 2019 Steven Universe: The Movie Amethyst Voice, television film 2021 The Witcher: Nightmare of the Wolf Tomas Voice

Television Year Title Role Notes 2006–2010 Barney & Friends Riff Voice Jentry Chau vs. the Underworld Tokki Voice, 3 episodes 2025 Super Duper Bunny League Bex Voice, main role Long Story Short Hannah Schwooper Voice, recurring role 2026 The Bad Guys: The Series Chi-Hoon Voice, minor role Rick and Morty Stephanie Jergins Voice, episode: "Rick Fu Hustle"

Video games Year Title Role Notes 2013 Grand Theft Auto V Additional voices 2014 Cartoon Network Superstar Soccer: Goal Amethyst Mobile phone game2015 Steven Universe: Attack the Light Amethyst Mobile phone game Lego Dimensions Chunk Level Packs 2017 Steven Universe: Save the Light Amethyst 2019 Steven Universe: Unleash the Light Amethyst 2020 Fallout 76: Wastelanders Various voices DLC