Balkus is the Second Zoalord and leading scientist of Chronos. when he was shipwrecked near the Isle of Silha, Arkanfel's home. He came accross Arkanfel's tomb and when Arkanfel awoke, he bowed to the Zoalord. Noticing that Balkus was a loyal subject of extreme intelligence, Arkanfel made Balkus a Zoalord and pulled 10 other Zoacrystals from his body telling Balkus to take charge of Chronos in his absence and make 10 more Zoalords to command the Zoanoid armies.

Since then Blakus has fought the Guyvers, created Enzyme Type II Zoanoids to kill them with his telekinetic abilities and amazingly cunning stratagies.

Balkus has yet to take Zoaform and most people believe he dose not have one however in Mutronics (the movie Guyver fans pretend didn't happen) the character called Balkus changed into a dragon like Zoaform.