Blake Weir is an American actor and voice actor based in Houston, Texas, known for his work in English dubs of anime series produced by Sentai Filmworks. He holds a Bachelor of Fine Arts in Acting from Stephen F. Austin State University and has an extensive background in theatre, with over forty professional stage credits in the Houston area. In addition to his performance work, Weir is also active as a director and acting educator, specializing in character development.

In the field of anime voice acting, Weir has built a diverse portfolio of roles across numerous series. He is recognized for his performances as Kotaro Hitaki in Haikyu!! To The Top and as Alpha Dubhe Siegfried in the 2019 Sentai Filmworks dub of Saint Seiya: The Hades Chapter - Inferno. His other notable anime credits include roles in major productions such as Vinland Saga, where he voiced Asgeir, Dororo, The Eminence in Shadow as Marco Granger, and Ya Boy Kongming! as Toshihiko Karasawa. He has also appeared in Chihayafuru 3, Blade of the Immortal, and the Sentai redub of Baki.

Weir's body of work demonstrates a recurring collaboration with Sentai Filmworks, the studio responsible for the English adaptations of many of his titles. His roles often encompass a range of character types, from supporting protagonists to various antagonists and ensemble characters, showcasing his versatility in voice performance.