The Australian actor and director died in 2008 at the age of 28 from an overdose. He had his breakout performance in the 1999 romantic comedy 10 Things I Hate About You and went on to star in The Patriot and Brokeback Mountain. Unfortunately, he never got to see himself star in The Dark Knight, as he died before it was released.
These Celebrities Died Way Too Soon
The American actor, director and screenwriter Jonathan Brandis committed suicide in 2003 at just 27 years old. He had his big breakthrough as a child actor starring in the ABC soap One Life To Live. He then went on to star in the popular NBC sci-Fi series SeaQuest DSV from 1993 until 1996.