Olivier Jankovic is a French voice actor recognized for his extensive work in the dubbing of animated series and films, particularly within the genre of Japanese anime. He is noted for providing the French voices for a wide array of lead and supporting characters, contributing significantly to the French-language versions of many cult and classic series.

His career encompasses a variety of major roles in anime. He is known for voicing Kaworu Nagisa in the legendary series Neon Genesis Evangelion. In the anime film Mazinger Z Vs. Devilman, Jankovic voices the protagonist Koji Kabuto, the pilot of Mazinger Z. He also took on the principal role of Van Fanel in Vision d'Escaflowne and its film adaptation, as well as Trowa Barton in Mobile Suit Gundam Wing and its sequel Endless Waltz. Other notable anime credits include Sôji Okita and Enishi Yukishiro in the Kenshin the Vagabond OVAs, Jinpachi in Réincarnations - Please save my Earth, and multiple characters in Saint Seiya: The Lost Canvas.

Beyond anime, his voice work spans a diverse range of animated productions. He was the French voice of Archie Andrews in Archie, Mystères et Compagnie and Yoyo in Simsala Grimm. His film dubbing includes the character Stupidus in Astérix et les Indiens. Jankovic's work also extends to live-action dubbing and television series, where he provided the French voice for Matt LeBlanc's character Joey in the popular series Friends. He has also contributed voices to various Power Rangers series, including Power Rangers: la Force Du Temps and Power Rangers: Force Animale.

His talent has been acknowledged through invitations to industry events. He was a guest at Japan Expo in Paris to celebrate the 20th anniversary of Neon Genesis Evangelion, alongside fellow voice actors from the series, where he participated in discussions about dubbing the legendary anime. In addition to his performance work, Jankovic has also been involved in the adaptation of dialogue and scripts for animated series, contributing to projects such as Jimmy Neutron, Simsala Grimm, and Martin Mystère.