David Patrick Seitz (born March 17, 1978)[1] is an American voice actor, ADR director and script writer best known for portraying Dio Brando in JoJo's Bizarre Adventure.

He has provided voices for English versions of Japanese anime and video games, including over 100 projects since his initial foray into the voice-over industry in 2000 with the Amazing Nurse Nanako OVA.

Prior to his current level of involvement in the voice-over industry, he taught English studies at his high school alma mater and received a Bachelor of Arts in Creative Writing, Master of Fine Arts in Creative and the Performing Arts Writing (both from UC Riverside)[citation needed] Seitz's video game roles include Eternal Sonata, Mortal Kombat, Castlevania, BlazBlue, League of Legends, Xenoblade Chronicles X, Octopath Traveler, Fire Emblem Three Houses, Skullgirls, Tekken, and Ys.

Apart from acting, Seitz has adapted and directed the English dubs of JoJo's Bizarre Adventure, Girls Bravo, Kamichu, Tales of Phantasia OVA and Carole & Tuesday.

He also adapted over 100 episodes of other series, including Aggretsuko, Zegapain, Hell Girl, and Romeo x Juliet.