Tobias Brecklinghaus is a German voice actor born on December 29, 1983, in Essen, Germany. His path to becoming a voice actor was established early through formal training; before completing his high school diploma in 2003, he had already finished a three-year course in speech and singing at the Folkwang University of the Arts in his hometown. He later studied German and English at the University of Duisburg-Essen. Since 2007, Brecklinghaus has worked as a freelance speaker, building a career that spans animation, video games, advertising, and television.

Within the anime and animation genre, Brecklinghaus has lent his voice to a wide array of characters, often bringing depth to serious or powerful figures. His notable roles include the cunning merchant Lassic David in Record of Grancrest War, the fierce warrior Bjorn in Vinland Saga, and the formidable warrior Gazef Stronoff in Overlord III. He has also voiced the chaotic dragon Fafnir in Miss Kobayashi's Dragon Maid S and the stoic bodyguard Tadaomi Karasuma in the Assassination Classroom franchise, including Koro Sensei Quest! and Assassination Classroom the Movie: 365 Days' Time. His repertoire further includes the mysterious villain Kurogiri in My Hero Academia, the character M in Sword Art Online Alternative: Gun Gale Online, and the martial artist Gouki Zenjou and student Mikoto Suou in the K: Seven Stories series and its film, K: Missing Kings. He is also the voice of the noble Regal Bryant in the Tales of Symphonia the Animation OVAs and Yoichuroh Takasugi in Seikimatsu Darling. His work also encompasses the martial arts master Isshinsai Ogata in KenIchi the Mightiest Disciple.

Beyond his extensive anime work, Brecklinghaus is widely recognized for his voice in the video game industry. He is the German voice of the iconic character Kratos in the God of War series, a role he has held since God of War: Ascension, including the 2018 game and God of War Ragnarök. He has also voiced the primary antagonist Helis in Horizon Zero Dawn and the title character in the Knack games. In the realm of live-action dubbing, he has provided the German voice for actors such as Vin Diesel in the series Fast & Furious Spy Racers and even voiced Barack Obama in an episode of Doctor Who.

Brecklinghaus is also a familiar voice in German media outside of dubbing. Since 2012, he has been a station voice for the children's channel Super RTL. His voice is featured in numerous advertising campaigns for major brands like Burger King, L'Oréal, Ford, and Deichmann. Additionally, his work includes narration for documentaries such as ZDF's Terra X and voice roles in popular audio dramas and audiobooks like Die drei??? Kids.