First Appearance: Justice League, Vol. 1, #2, 1987

First Meeting with Booster Gold: Justice League International #9, 1988

Encounters with Booster Gold: 2

Colonel Rumaan Harjavti was the dictator of the Middle Eastern nation of Bialya, enemy of the West.

The JUSTICE LEAGUE found themselves in frequent opposition to Harjavti, who often flaunted international law in order to further his own ends. Booster Gold met Harjavti personally on several occasions.

First Appearance: Booster Gold, Vol. 2, #34, 2010

First Meeting with Booster Gold: Booster Gold, Vol. 2, #34, 2010

Encounters with Booster Gold: 1

Hieronymous, the Under-Achiever, is an interstellar magician and thief with a very high tolerance for personal failure.

Booster Gold and the Justice League pursued Hieronymous after his right hand demon, P'Upik stole a facsimile of the Book of Destiny from a Catholic monastery and used it to subjugate the planet of Queen Artemis.

First Appearance: Booster Gold, Vol. 2, #4, 2007

First Meeting with Booster Gold: Booster Gold, Vol. 2, #4, 2008

Encounters with Booster Gold: 6

Jason Goldstein joined the Time Masters to make the world a better place. When he attempted to murder a young LEX LUTHOR, RIP HUNTER kicked him off the team. Adopting the name Rex Hunter, Goldstein aligned himself with the TIME STEALERS and traveled through time in a quest to make the world better for his own profit.

Rip Hunter and Booster Gold combined forces in order to save the JUSTICE LEAGUE from Rex Hunter's time-twisting plans.