Michael Sheen is a busy man.

The actor - who will appear in future films such as New Moon and Alice in Wonderland - has been cast in the Tron sequel.

Walt Disney Pictures has confirmed that Sheen will appear in Tron: Legacy, though there's no word yet on who he will play. Sheen joins a cast that includes:

• Jeff Bridges
• Garrett Hedlund
• Olivia Wilde
• Beau Garrett

Sheen's other credits include The Queen (for which he was nominated for an Oscar), Frost/Nixon, The Damned United and Underworld.