Alyssa Marek is an American voice actor based in Houston, Texas, who works primarily in English dubs of anime series. She graduated from the University of Houston with a Bachelor of Fine Arts in acting and has credits in stage, voice, and screen performance.

Marek's notable voice roles include the lead character Hitomi Tsukishiro in the time-travel anime Iroduku: The World in Colors. She is also known for voicing Ruby Hoshino in the popular series Oshi no Ko, Nagomi Wahira in Akiba Maid War, and Ryoko Mendo in the 2022 adaptation of Urusei Yatsura. Her other prominent roles include Hanako Katsuta in Run with the Wind, Nevra Martillo in Assassins Pride, Kaede Naurse in Shikizakura, Aoi Miyamori in Shirobako, and Antarcticite in Land of the Lustrous.

Her career includes a wide range of supporting and lead parts in numerous series, such as Ai Kamiyo in Dark Gathering, Aika Natsukawa in The Dreaming Boy Is a Realist, Tsugiko in Phantom of the Idol, Michiru Horikawa in Chihayafuru 3, and Rei Suzuki in Why the Hell are You Here, Teacher!?. Her film work includes a role in the movie The Tunnel to Summer, the Exit of Goodbyes.

Marek is affiliated with Sentai Filmworks, a production company known for licensing and dubbing anime, and many of her roles have been for dubs produced by this studio and streamed on the HIDIVE platform. She has been a guest at anime conventions, such as Anime Boston.