Ryan Shanahan is an American voice actor known for his work in English-language dubs of Japanese anime films. He was born on May 5, 2004, in New York City. His career in voice acting is prominently marked by several high-profile roles in the mid-2010s.

Shanahan is perhaps best known for providing the voice for a younger version of a central character. In the critically acclaimed 2016 film A Silent Voice, he voiced the role of Shoya Ishida as a sixth-grade student, while actor Robbie Daymond voiced the character in his high school years. This English-language adaptation was produced by NYAV Post and directed by Stephanie Sheh, marking a significant collaboration in Shanahan's career.

He has also taken on lead roles in other prominent anime films. Shanahan voiced the character Norimichi Shimada in the English dub of the 2017 film Fireworks, Should We See It from the Side or the Bottom?. Additionally, he was the voice of Seishiro Sumikawa, a character also known as Torii, in the 2018 film Okko's Inn. In both A Silent Voice and Okko's Inn, Shanahan was also credited with voicing additional characters, demonstrating his range within a single production.

Through these roles, Shanahan has worked repeatedly with NYAV Post, a studio known for producing English dubs for numerous anime titles. His filmography from this period shows a focus on bringing young male protagonists to life in emotionally driven anime feature films.