Jude Law, Johnny Depp and Colin Farrell will appear as Heath Ledger's character in unfinished film The Imaginarium of Doctor Parnassus, the BBC has learned.
Ledger was found dead at his flat in Manhattan
A spokeswoman for Law said the three would play the role of Tony in the film "subject to negotiations".
She said she did not know how the role would be restructured.
The Terry Gilliam-directed film was halted when Ledger, 28, died from a drugs overdose in the US shortly after filming scenes for the movie in London.
It is thought that original footage of Ledger will remain while Law, Depp and Farrell will play different incarnations of his character, Tony.
The fantasy film follows a travelling theatre troupe which offers audience members the chance to pass through a magical mirror to alternate dimensions.
Depp, Law, and Farrell are each expected to "become" Ledger's character in one of these new worlds.
Law's spokeswoman said the actor, who is on holiday, was unavailable for comment.
Ledger died from an accidental overdose of six different types of prescription drugs in his New York apartment.
After filming for the movie had finished in London, the $30m (£15.1m) production then moved to Vancouver, Canada for interior and bluescreen scenes before it was suspended upon news of Ledger's death.
At the time, the film's makers described Ledger as "a great actor, a great friend and a great spirit" and said Gilliam and his producers would be "assessing how best to proceed".
Last weekend, international film stars were among mourners at a memorial service for the Ledger in his home town of Perth.
Speakers at the service, which was followed by a private burial for close family only, included actress Cate Blanchett and film director Neil Armfield.