Hans-Detlef Hüpgen is a German voice actor born in 1961 in Eschweiler, recognized for his extensive work in anime dubbing. He is professionally active as a voice actor for film and television series, frequently contributing to German-language adaptations of Japanese animated productions.

Hüpgen is notably associated with the German synchronization of the classic 1980s animated series Voltron: Defender of the Universe. For the second German synchronization of the show, produced in 2008 and 2011, he performed two significant roles. He served as the off-screen narrator, a voice originally performed by Peter Cullen in the English version. Additionally, he voiced the character of Dr. Gendo in episode twenty two of the series.

Beyond Voltron, Hüpgen has an extensive portfolio of roles in numerous anime series, often taking on supporting or episodic characters. His credits include performing voices in popular and critically acclaimed titles such as Bleach, where he voiced Yoko-chin and Dumbell, Death Note as Rod Ross, and Black Cat as Gallom and Zagine Axeloake. He also contributed to the German dubs of Fullmetal Alchemist as Frank Archer, Darker than Black in multiple roles including Yukas Vater, Alan, and Norio Ukiyama, and Trigun as Badwick and Denim. His voice can also be heard in older productions such as Dragon Ball and Salty Rei.

In addition to his anime work, Hüpgen has voiced characters in American animated series. His credits include roles in Extreme Dinosaurs and Cosmo & Wanda - Wenn Elfen helfen. He has also been involved in dubbing for live-action films, with a part in the German version of Traffic - Die Macht des Kartells.

The actor maintains a professional web presence related to his voice work, indicating an active career in voice-over production for various media. His body of work reflects a long-standing commitment to the German dubbing industry, with a particular focus on anime and action-oriented animation.