Julius Jellinek is a German voice actor known for his work in the dubbing of anime and other animated series for the German market. He was born on May 21, 1984, in East Berlin, in the former German Democratic Republic.

Jellinek has provided the German voice for a wide range of prominent anime characters. His roles include Genjirou Tanigaki in Golden Kamuy, Iskahn in Sword Art Online: Alicization - War of Underworld, and Koutarou Bokuto in Haikyu!! Land VS. Air. He is also known for voicing Mirio Togata in My Hero Academia and Connie Springer in Attack on Titan, a role he performed until the final season of the series. Additional anime credits include Shougo Sena in Love Stage!!, Leon Fierce in BeyWheelz, and Jaden Yuki in the German dub of Yu-Gi-Oh! GX and its film Yu-Gi-Oh! 3D: Bonds Beyond Time. He also voiced the character Akira Takizawa across multiple releases of the Eden of the East series, including its films Paradise Lost and The King of Eden.

In 2022, it was announced that Jellinek would be stepping away from voice acting for an indefinite period. This led to a recasting for his role as Connie Springer in Attack on Titan The Final Season starting from episode 76, with actor Jan Makino taking over the part. This departure also affected potential future recordings for other ongoing series in which he was involved, such as Fairy Tail, where he voiced the main protagonist Natsu Dragneel.

Beyond anime, Jellinek's voice acting career includes work on Western productions dubbed into German. He was the German voice for the character Casper in the live-action film Casper, provided the speaking voice for a young Simba in The Lion King, and voiced the character Randall in the German dub of the Disney animated series Recess.