Brion Markov aka Geo-Force is one of the supporting protagonists in Batman: The Brave and the Bold.
He is voiced by Hunter Parrish.
Brion George was the handsome yet brash crown prince of the European nation Markovia. Baron Bedlam and his forces invaded the country and executed King Viktor. Markov's older brother Gregor took over as king but was unable to stop Bedlam. Markov then implored the royal family's scientist Dr. Helga Jace to use her research and give him super powers. He encountered Batman and the Outsiders while fighting against Bedlam. After peace was re-established, Markov journeyed to America to master his powers by training under Batman.
Batman agreed but treated him as an equal compared to the other members of the Outsiders. This infuriated Markov, who was royalty his whole life. Eventually, Markov respected Batman and earned his trust. He took the code-name Geo-Force, after his ability to control the earth. On a mission with Batman and the Outsiders, Geo-Force used his power to even the odds then finished off the cobra statue trying to feed on Batman.