Junior Bloomsberry was the main antagonist in Curious George. He is Mr. Bloomsberry's son and Ted and George's enemy, who tries to wreck the museum into a parking garage to make money, but fails when Ted and George found the real Giant 40 ft tall idol of Zagawa.
He made a cameo appearance in Curious George 2: Follow that Monkey.
He was portrayed by David Cross.
He will appear in Curious George 4: The Runaway Monkey and he will get arrested and sent to prison to life without parole for killing Maggie during the wedding day and framing George for the damage (as seen in 2006 original film).