Is Heath Ledger the best actor in 21st century?

It's difficult to objectively determine who is the "best" actor in any given time period, as acting talent is subjective and what one person considers exceptional may not be the same for another. However, Heath Ledger's performance as the Joker in the 2008 film "The Dark Knight" has been widely acclaimed by critics and audiences alike, and is often considered one of the greatest performances of the 21st century.

Ledger's portrayal of the Joker was a complex and nuanced performance that captured the essence of the character's chaotic and unpredictable nature. His performance was physically and emotionally demanding, and he fully committed himself to the role, resulting in a truly iconic performance.

While there are many other talented actors working in the 21st century, Ledger's portrayal of the Joker stands out as a particularly remarkable and memorable performance. However, it's important to recognize that there are many other talented actors working in the film industry, and personal preferences and interpretations may vary.