Mason Alexander Park is an American actor known for work across stage, television, and voice performance. Born on July 12, 1995, Park began their professional career in regional theatre before gaining wider recognition. They earned a Bachelor of Arts in Musical Theatre from Point Park University in Pittsburgh, graduating in 2016. Park has been active in the entertainment industry since 2010 and uses they/them pronouns.

While Park is not primarily an anime voice actor, they gained significant attention within the anime community for their role as Gren in the 2021 Netflix live-action adaptation of the classic anime series Cowboy Bebop. In this production, Park portrayed Gren, a character originally from the anime, appearing in five episodes of the live-action series. This performance marked their most direct connection to the anime genre, though it should be noted the role was in a live-action adaptation rather than an animated voice-over project.

Park's voice acting work includes providing the voice for a Tavern Keeper in The Legend of Vox Machina, an adult animated fantasy series produced by Amazon and based on the Critical Role web series. In the audio drama space, Park voiced the character Jendrix, a genderqueer high school student, in the podcast musical series Loveville High.

Beyond their voice work, Park has appeared in several notable television productions. They played the main role of Desire in the Netflix adaptation of Neil Gaiman's The Sandman from 2022 to 2025 and portrayed Ian Wright in the NBC revival of Quantum Leap from 2022 to 2024. Earlier in their career, Park made guest appearances on Nickelodeon shows including iCarly as Toby Peterson and Bucket & Skinners Epic Adventures.

Park's career began in regional theatre, where they performed leading roles in productions such as Hedwig and the Angry Inch, Cabaret, The Rocky Horror Show, and Mary Poppins. For their performance as the Emcee in Cabaret at the Olney Theatre Center in 2019, Park received a Helen Hayes Award for Outstanding Lead Performer in a Musical. This award was notable as Park became the first recipient of this category after it switched to non-gendered awards. Park has also performed in London's West End. In the realm of awards and recognition, their work has been acknowledged primarily within the theatre community, and they continue to work across multiple mediums including film, television, and voice acting.