According to Harbinger #1, Toyo Harada was born in 1933 which would make him around 80 years old. This gives incite that he either ages slowly or that he mentally projects himself younger than he is.
Valiant Universe (VH1) - Pre-Unity
The most powerful psionic on Earth, Toyo Harada is living proof that the road to Hell is paved with good intentions. I One of two known Harbingers to possess the "Omega Power," Harada commands the full spectrum of psionic abilities, including telepathy, telekinesis, mind-control, and many other deadly talents. Fearing that humanity may eventually destroy itself, Harada decided early in his life to preserve the planet by clandestinely conquering it. To this end, he established the Harbinger Foundation to recruit others with paranormal abilities, whom Harada refers to as “Harbingers" of the next step in human evolution. He seldom confronts his enemies directly, preferring to leave such dirty-work to his elite Harbinger warriors, the Eggbreakers." With tremendous economic and political clout, Harada seems close to achieving his goals, and is ready to destroy anyone who stands in his way. The great irony is that Harada truly feels he was born to save the human race. But, in his haste to eliminate any opposition to his grand scheme, Toyo Harada has lost his own humanity.