George is Jonathan Joestar's father and, after a tragic misunderstanding, adopts Dio Brando in his family, kick-starting the events of the first six parts of the series.

(Source: JoJo Wikia)

This entry is for the 2007 movie, not to be confused by the first arc of the 2012 TV anime adaptation of Jojo's Bizarre Adventure, also named Phantom Blood. Nor the movie format 're-edit' of said first season compiled from the 2012 TV episodes. 
Jonathan Joestar is an aristocratic boy whose life is suddenly turned upside down by a mysterious new boy who arrives, Dio Brando. Dio has a connection to his father, and over time, a rivalry forms as Dio becomes obsessed with a mysterious, ancient, and mystical stone mask that Jonathan's father keeps. 
Note: This film hasn't been released publicly outside of its original limited theatrical run and is considered mostly lost, apart from several trailers and a found 16-minute undubbed clip compilation used for a student sound design assignment. (Source: Lost Media Wiki)

Beginning its tale in 19th century England, young aristocrat Jonathan Joestar finds himself locked in bitter rivalry with Dio Brando, a low-born boy who Jonathan's father took under his wing after the death of Dio's father. Discontent with his station in life, Dio's fathomless lust to reign over all eventually leads him to seek the supernatural powers of an ancient Aztec stone mask in the Joestar's possession—an artifact that will forever change the destiny of Dio and Jonathan for generations to come. 
 
Fifty years later, in 1938 New York City, Jonathan's grandson Joseph Joestar must take up his grandfather's mission and master the abilities necessary to destroy the stone mask and its immensely powerful creators who threaten humanity's very existence, the Pillar Men. 
(Source: Anime News Network)

A Mexican voice actor. He is the father of [Darhey Fernández](https://anilist.co/staff/189470/Darhey-Fernndez).

An Italian actor, voice actor, ADR director and dialogue writer, mostly known for his roles as [Kakashi Hakate](https://anilist.co/character/85/) and more recently as the adult [Son Goku](https://anilist.co/character/246/) in Dragon Ball Super, and [Cooler](https://anilist.co/character/6304) in the Dragon Ball series.

Young Jonathan Joestar’s life is forever changed when he meets his new adopted brother, Dio. For some reason, Dio has a smoldering grudge against him and derives pleasure from seeing him suffer. But every man has his limits, as Dio finds out. This is the beginning of a long and hateful relationship!
 
(Source: Viz Media)

After Jonathan's Death, his son, George Joestar II travels with Erina to live in La Palma of the Canary Islands in Spain. There he pledges his love to Lisa Lisa and eventually grows to be a World war Air Pilot. 

Written and presented as the lost transcript of Dio's Diary, featured in Stone Ocean. In the book, he reflects upon his battles throughout the original series, describes his ideals and plans for "obtaining heaven" and talks about the concept of death, as well as his unfortunate mother.