While James Dean was nominated for two Academy Awards posthumously (for *East of Eden* and *Rebel Without a Cause*), he is not the only actor to achieve this.
Other actors who have received posthumous Academy Award nominations include:
* Peter Finch (Best Actor for *Network*)
* Heath Ledger (Best Supporting Actor for *The Dark Knight*)
* Philip Seymour Hoffman (Best Actor for *Capote*)
* Chadwick Boseman (Best Actor for *Ma Rainey's Black Bottom*)
So, while James Dean is a well-known example, he is not the only actor to receive multiple posthumous Oscar nominations.