During the second Cybertronian wars, Captain Iacon served as Iacon's protector. He was born from a weakling named R'jaz, a young alien bush baby who transformed into a robot and back into bush baby. He was put on ice in the arctic during a fight against the cruel Nazicon leader Scarlet Skull. 70 years later he thawed out and saw Nickel Furry in modern Cybertron. His love was C'r't'r, who died in 2016 while he was discussing the Sokoviatron Accords, a discrimination against superheroes like him, which causes a feud with fellow Maxivenger Woodforest (Beast Wars: Transformers: E.N.D.A.N.G.E.R.E.D. Character) as well as his Civil War, which is between hero and hero caused by Baron Xarom who lost his parents in Sokoviatron. Vengeful, Xarom killed Challax's father the Cyberkandan King, causing Challax to become the Masked Panther, ally to Woodforest. Captain Iacon's serum is made by Soren, a professor working to defeat the Nazicons and was destroyed by the Nazicons. He first appeared in Captain Iacon Comics #1 (March 1941).

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