Robert E. O. Speedwagon

Robert Edward O Speedwagon is a friend of the Joestars.

Story
Robert Edward O Speedwagon(Or just Speedwagon as most refer to him) is probably the most loyal friend to the Joestar family that ever lived. He first appeared as an Ogre Street thug boss, attacking Jonathan Joestar, but soon realized the young man's worthiness and dedication, becoming his good friend. He helped uncover Dio Brando's plot to poison George Joestar, and from that point onward he remained by Jonathan's side, helping in whatever way he could to defeat Dio. By the 1930's he is the head of the Speedwagon Foundation, a giant oil company, which assists the Joestar family a great deal in the Series 2-6. In 1952 he dies of a heart attack at age 89.