Son of Doctor Kenneth Onishi (Daichi Ōnishi) (voiced by Kirk Thornton), Koji allied himself with the Autobots after his father was kidnapped by Megatron, offering them advice and knowledge about Earth. A bright child, Koji has learned a lot about archeology from his father, though he possesses no special powers, beyond a startling knack for being right where he needs to be, in the middle of coincidental Predacon attacks. When Dr. Onishi was freed from Megatron's clutches, it seemed Koji's role in the Transformer war was over, until he found himself able to control Fortress Maximus.  (From Wikipedia)

An evil race of transforming robots known as the Destronger make their appearance known by invading a world exposition in New York and abducting Professor Onishi, a renowned scientist. The professor's son Yuuki befriends Fire Convoy and the heroic Cybertron forces, who will stop at nothing to rescue the professor and protect Earth from the wrath of Gigatron and his Destron henchmen.
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(Source: Anime News Network)

Jason Spisak (born August 29, 1973) is an American actor, voice actor, producer and computer programmer in animation and video games, and producer and founding member of Blackchalk Productions. He is also the co-leader of the Symphony OS Project and the designer of Symphony's unique Mezzo desktop environment and wrote the Laws of Interface Design, for which the project tries to adhere to in its designs. He was previously a co-founder of Lycoris.

Koji Onishi