Jalen K. Cassell is an American voice actor, director, and writer known for his extensive work in English dubs of anime series and films. Born on December 3, 1993, in Forrest City, Arkansas, he has been active in the voiceover industry since approximately 2014. He is associated with several major dubbing studios, including Bang Zoom! Entertainment, VSI Los Angeles, and SDI Media.

Cassell has built a diverse portfolio, lending his voice to a wide array of characters across many popular anime franchises. In the Record of Ragnarok series, he voices the powerful Norse god of thunder, Thor. He is also recognized for his role as Okuyasu Nijimura in JoJo's Bizarre Adventure: Diamond is Unbreakable and as Teppei Kiyoshi in the Kuroko's Basketball film Last Game. His work in the Fate franchise is notable; he provided the voice for the character Chiron in Fate/Apocrypha and took on dual roles in Fate/Grand Order Final Singularity - Grand Temple of Time: Solomon, voicing both Lev Lainur Flauros and Solomon, the Mage King.

His other prominent anime credits span a variety of genres and series. He plays the role of Finnegan in Lupin III: Prison of the Past, Leon D. Olivier in Hortensia Saga, and Rokuta in Yashahime: Princess Half-Demon - The Second Act. In the world of web anime, he is the voice of Eric Toga in B: The Beginning and its sequel, B: The Beginning Succession. He has also appeared in series such as Welcome to Demon School, Iruma-kun as Ali, Orient as Yataro Inuta, The Promised Neverland as Vincent, and Ingress as Christopher Brandt. In the film Bubble, he voiced the character Osawa, and in the number24 rugby anime, he played Toranoshin Higashizaka.

Beyond acting, Cassell has also contributed to the industry as a director and writer, including serving as a screenwriter for the English dubbed version of the anime series The Ones Within. Standing at 193 cm, he is one of a growing number of prominent Black voice actors in the American anime dubbing industry.