Leonardo DiCaprio captivated audiences as Jack Dawson in the cinema classic Titanic, but the hunky heartthrob will voice a different Jack for an upcoming cartoon.

Leonardo has signed up for his first animated role in the upcoming DreamWorks feature The Guardians, Variety has learned. The actor will voice Jack Frost in the the Peter Ramsey-helmed project.

The film is scheduled for release in November 2012.