Alexander Ziegenbein is a German actor and voice actor based in Berlin. He completed his acting training at the Schauspielschule Charlottenburg in 2003. In addition to his on-screen acting work, he has been active as a voice actor and off-screen narrator for broadcasters such as Arte, NDR, and ZDF since 2013. Beyond his performance career, he is also a musician, playing guitar for the band Puls under the pseudonym Richard Blaze.

Ziegenbein has provided the German voice for a range of characters in anime and animated series. He voices the character Mono Shinobimono in the German dub of the anime series Komi Can't Communicate, lending his voice to the original Japanese portrayal by Kensho Ono. He also takes on the role of the exorcist and actor Shuuichi Natori in the film Natsume Yujin-cho the Movie: Ephemeral Bond, the German version of the Natsume's Book of Friends film, where he speaks for the character originally voiced by Akira Ishida in Japanese. His work in the anime genre further includes roles such as Yumikage Tsukimitsu in Servamp, for which the original Japanese actor was Daisuke Ono, and Alecdora Sandler in Black Clover.

His voice acting portfolio is extensive and covers a broad spectrum of live-action film and television series. He is frequently heard in German dubs of popular American series, providing voices for recurring and guest characters. Some of his notable roles include Dr. Elliott Rollins in Pretty Little Liars (original portrayal by Huw Collins), Robert Dudley in Reign (Charlie Carrick), Tavi in Orange Is the New Black (Shafir Ariel), and roles in various installments of the Chicago franchise, such as Chicago P.D. and Chicago Fire. His film work includes voicing Theo van Gogh in the animated feature Loving Vincent.

Ziegenbein's professional profile, as listed on casting platforms, indicates a versatile skill set including a baritone voice, proficiency in English, and musical abilities on multiple instruments, including guitar and piano. He is a member of the German actors' association Bundesverband Schauspiel (BFFS).