鳥山 明 (とりやま あきら) Toriyama Akira, creator of the Dragon Ball, Dr. Slump series is born on 5 April 1955.
most likely but not in a while due to Akira Toryiama's break.
maybe
Akira Toriyama is 62 years old (birthdate: April 5, 1955).
Akira Kobayashi is 79 years old (birthdate: November 3, 1938).
Akira Yamaoka is 43 years old (birthdate: February 6, 1968).
Akira Kaji is 31 years old (birthdate: January 13, 1980).
Akira Machida is 76 years old (birthdate: October 16, 1936).
Akira Nogami is 43 years old (birthdate: March 13, 1968).
Akira Takasaki is 56 years old (birthdate: February 22, 1961).
Akira Taue is 50 years old (birthdate: May 8, 1961).
Akira Tozawa is 31 years old (birthdate: July 22, 1985).
They have put SSJ4 in Dragon Ball Z: Budokai Tenkaichi 3, but remember Dragon Ball GT wasn't made from the manga and Akira Toryiama didn't write the manga, and that's where SSJ4 came from.