Mark Atherlay is an American voice actor who began his career in San Francisco, California, in 1999. His body of work encompasses voice roles in anime series, video games, and other media.

In anime, Atherlay is known for his role as the character Jean-Pierre Polnareff in the English adaptation of the JoJo's Bizarre Adventure series. Another notable anime role is Shuji, the lead character in the series SaiKano, also known as She, The Ultimate Weapon. His performance in SaiKano was noted for being well-matched to the character's appearance, though some early episodes were critiqued for a stiffness in delivery. His other anime credits include roles in Record of Ragnarok, where he voiced Kagekatsu Toda and Nobutsuna Kamiizumi.

Beyond anime, Atherlay has an extensive career in video game voice acting. His credits include the role of Derrek Falkan in Syphon Filter 2, various characters in Phantasy Star Universe, and roles in Tenchu: Time of the Assassins. He also provided additional voices for the video game adaptation of Batman Begins and voiced a Game Master in Voice of Cards: The Forsaken Maiden. His work extends to other interactive titles such as The Urbz: Sims in the City and Unicorn Overlord. In addition to his performance work, he has also been credited in an unlicensed additional crew role.