[6] Chapin is known for his roles in anime and video games, such as Ichijo Takayanagi from Red Data Girl, Connie Springer from Attack on Titan, Shingo Wakamoto from Prison School, Kukulkan in Smite, Hideyoshi Nagachika from Tokyo Ghoul, Yuri Dreyar from Fairy Tail, Billy Kid from Zenless Zone Zero, and Katsuki Bakugo from My Hero Academia.

He worked as a production assistant for Toddlers & Tiaras, NBC Nightly News, Disaster Guy, and The Rolling Girls.

In 2014, Chapin landed the lead voice role of Raishin Akabane in Unbreakable Machine-Doll.

[7] In 2015, he voiced the lead character Harutora Tsuchimikado in Tokyo Ravens.

[8] On June 18, 2021, Chapin was announced to be engaged to voice actress Kristen McGuire.