Matt Damon To Make A 'Stalkerish' Cameo On 'Entourage' Finale

Matt Damon smiles during the 'Change Haiti Can Believe In' forum at the Stephen Smith Center at the John F. Kennedy Presidential Library and Museum on January 27, 2009 in Boston, MassachusettsGetty PremiumAccess Hollywood

LOS ANGELES, Calif. -- Matt Damon recently wrapped a top-secret cameo for the sixth season finale of "Entourage," and the actor is playing a character who is passionate about something close to his own heart.

"It wasn't hard to get him," "Entourage" executive producer Doug Ellin recently told TV Guide Magazine. "Matt came on the phone with me and wanted to do something that focused on his charity, One By One, which helps kids all over the world."

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And Matt will star alongside basketball great LeBron James in the finale cameo.

"LeBron and Matt have a scene together and they just kill it!" Dough added.

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Cast member Kevin Connolly -- who plays Eric on the HBO show -- was exited to work with the movie star and the hoops star.

"They were just amazing," Connolly said of Matt and LeBron. "Doug wrote a scene where we're all at the airport together. Matt was all smiles. He was definitely there to have fun."

Emmanuelle Chriqui, who plays Eric's perrenial love interest Sloan, explained how Matt intimidates Vince (played by Adrien Grenier) for a good cause during the episode.

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"Matt gets Vince to make a massive donation. He's like, 'Bro - whip out your checkbook!'" she revealed.

"The joke is that Matt is very passionate about his charity - almost in a stalkerish kind of way," Grenier said. "Vince becomes intimated by his intensity. He ends up bullying Vince into giving much more than he should."

The "Entourage" season finale airs Oct. 4.

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