Rajko Geith is a German actor and voice artist, born in Hannover in 1988. He began his career with a strong foundation in classical theatre, studying acting at the University of Music and Performing Arts in Frankfurt am Main from 2009 to 2013. Following his graduation, he held ensemble positions at the Hessisches Staatstheater Wiesbaden and the Oldenburgisches Staatstheater, where he performed in a wide range of productions, including Shakespeare, modern dramas, and musicals like The Rocky Horror Show.

Since 2020, Geith has worked as a freelance artist in Berlin, expanding his focus to include on-screen acting and, notably, voice work for international film and television. His voice acting career, or synchronization, involves dubbing foreign-language content into German. He provides the German voice for characters in a variety of media, including major film and television productions. One of his prominent roles is providing the German voice for the protagonist Vash the Stampede in the anime series Trigun Stampede. He also voiced a character in the Oscar-winning film The Whale, dubbing actor Ty Simpkins.

Geith's work in anime dubbing is extensive. He is the German voice for the character Nagi Umino in the romantic comedy series A Couple of Cuckoos, lending his voice to the role originally performed by Japanese voice actor Kaito Ishikawa. His other anime credits are numerous and include voicing Ran Haitani in Tokyo Revengers, a character in Zom 100: Bucket List of the Dead, Kenyu Yukimiya in Blue Lock, a role in More Than a Married Couple, But Not Lovers, and providing additional voices for popular series such as Spy x Family and Classroom of the Elite. Through these roles, he regularly collaborates in dubbing the performances of a wide array of Japanese voice actors.