Veteran actor Mel Gibson is reportedly set to make a guest appearance in "The Hangover" sequel.

"It's a done deal. Mel will make a cameo as a tattoo artist. Filming is taking place on the Warner Bros. lot, where a Bangkok set has been built, and Mel is expected to film his role in two weeks. Then the production moves to Thailand at the end of October," said a source.

Contactmusic.com reports that the "Braveheart" star has endured a tough year which saw him split from his girlfriend Oksana Grigorieva, the mother of his young daughter Lucia, and the nasty break-up played out in public. The actor now looks to bouncing back with the sequel.