Jazzy Oliver is a trans femme non-binary voice actor based in Texas, recognized for work across animation, video games, and immersive theater. Oliver began pursuing voice acting as a hobby in the 2010s before deciding to transition to professional work in 2020. Their early career included various jobs outside of entertainment, with a significant portion of their acting income derived from immersive theater work with the Murder Mystery Company.

Oliver has voiced characters in several animated series and video games. One of their notable roles is Paintbrush in the animated series Inanimate Insanity, a character they began voicing near the end of 2022. The series holds personal significance for Oliver, as it draws inspiration from Total Drama Island, a show they watched frequently during childhood. Within the same series, they also voiced the Inani-Mate character Nickel Jr., which required growls, grunts, and a voice similar to a character from the film Us. Their other animation credits include the series Planet Hoppers.

In video games, Oliver has performed a variety of roles across indie projects, particularly visual novels. Their game credits include the character Bobo in Rogue Robots, Daemian in DreamCatcher: Reflections, Brian in Play Dead, Muggsy in Elsewhere Express, and a role in the game Deadly Night. For the character Muggsy, Oliver improvised a pirate voice during a pirate-related line, which was well-received by the director and developers. In an audio drama titled Dreambound, they voiced the character Nimara, a calm and collected individual with a deeper, suave voice, marking a departure from their more typical energetic character types.

Oliver is noted for maintaining a professional demeanor and a positive attitude in their work. As a voice actor who identifies as trans femme non-binary, they have spoken about the importance of authentic representation in the field and actively work to pursue roles that reflect their identity while seeking opportunities for other trans and non-binary performers. They have also discussed the challenge of navigating an industry where casting directors may not know how to place a trans woman, acknowledging that their voice often fits more masculine characters despite their female identity.

Their vocal characteristics include the ability to perform English-language roles across a wide age range, from child to senior, and they speak with a general North American accent. Oliver has shared that their preparation process for a role involves running through the script independently to understand the character's headspace, particularly for emotionally heavy content. To maintain vocal health, they perform vocal exercises, know their limits to avoid strain, and rely on staying hydrated with water.