Iggy was a Boston Terrier with a gift; he was one of the very few animals that contained a stand known as the fool.

Iggy used the power of his stand to get a peaceful life and achieved top dog against the other strays in New York. With the power of the Fool, Iggy was able to escape any dog catcher who tried to capture him. Iggy thought he was unstoppable with the power of his stand, that was until he met a fortune teller known as Avdol and his stand Magicians Red.

Their battle was fierce but in the end, Avdol was able to capture the stray. When he was in that cage Avdol decided to use his tarot card deck and gave Iggy's stand name The Fool.

After that, the Speedwagon foundation took him in to study the dog due to his ability to use a stand. While there he was treated nicely and was given loads of his favourite treats which was coffee flavoured gum. He was probably treated nicely due to the fact that he could get escape at any time he wanted.

Iggy was then sent to Egypt to help the Stardust Crusaders against DIO. Iggy didn't have any reason to care about helping the Crusaders, after all, he had nothing against DIO that was until that day he fought against Pet Shop. During that fight, Iggy lost his front paw, a lot of blood and nearly drowned. However, after that day Iggy grew a resolve and became serious against the fight against DIO as he is the reason Iggy couldn't have a peaceful life.

Iggy led the Crusaders to DIO's mansion where they planned to defeat DIO however a floating stand user by the name of D'Arby younger separated the team. Iggy, Polneraff and Avdol despite being told to burn the mansion to the ground decided to go into the mansion but little did they know that it would be their demise. First Iggy saw Avdol get devoured by the stand Cream. Polneraff and Iggy tried to fight Cream but it did not end well. Iggy tried to trick Cream's stand user Vanilla Ice by having the Fool disguise itself as Dio but Vanilla Ice saw through the disguise and took his rage out on Iggy for making him destroy something that looked like his master.

He died by using his last remaining strength to save Polneraff from Cream. Showing that Iggy did have a resolve, that he did have a proud soul. After all, stands are a representation of one's souls and Iggy's stand acted on its own to save to save Polneraff in exchange for his own life.

However, even though he died there this isn't the end for Iggy as he will be having another chance at life in a bizarre new world.