Kevin Dillon plays Johnny Drama on Season 6 (Credit: HBO Photo)

Kevin Dillon plays Johnny Drama on Season 6 of "Entourage."

Kevin Dillon

Kevin Dillon plays Johnny Drama on "Entourage."

Kevin Dillon plays Johnny Drama on Season 6
(Credit: HBO Photo)

Kevin Dillon plays Johnny Drama on Season 6 of "Entourage."

Kevin Dillon plays Johnny Drama, Vince's half-brother, on
(Credit: HBO Photo)

Kevin Dillon plays Johnny Drama, Vince's half-brother, on "Entourage."

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Kevin Dillon poses during a photo call for
(Credit: AP Photo)

Kevin Dillon poses during a photo call for "Entourage" at the 60th International film festival in Cannes.

From left, Jerry Ferrara, Kevin Dillon, Jeremy Piven,
(Credit: AP Photo)

From left, Jerry Ferrara, Kevin Dillon, Jeremy Piven, Kevin Connolly and Adrian Grenier pose during a photocall for the comedy "Entourage" at the 60th International film festival in Cannes.

Vincent Chase and his entourage on the beach
(Credit: HBO Photo)

Vincent Chase and his entourage on the beach in Mexico in a scene from Season 5 of "Entourage."

This scene from Season 5 of "Entourage" perfectly
(Credit: HBO Photo)

This scene from Season 5 of "Entourage" perfectly encapsulates the four main characters. Just look at their eyes. Vince and Turtle are scoping out the girl on the left. E is all business as he walks toward Ari Gold's office. And Johnny Drama is in his own little world on the phone in the background on the verge of a meltdown.

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The seven main characters of "Entourage" pose to
(Credit: HBO Photo)

The seven main characters of "Entourage" pose to promote Season 5 of the hit HBO comedy. Front, from left: Adrian Grenier, Kevin Connolly, Jeremy Piven, Kevin Dillon. Back, from left: Rex Lee, Jerry Ferrara, Debi Mazar.

Super agent Ari Gold and his assistant Lloyd
(Credit: HBO Photo)

Super agent Ari Gold and his assistant Lloyd pose with the boys of "Entourage" on the Miller Gold Agency set for Season 5.

The cast of "Entourage" pose in front of
(Credit: HBO Photo)

The cast of "Entourage" pose in front of a car on the tarmac for Season 5.

The cast of "Entourage" pose on the beach
(Credit: HBO Photo)

The cast of "Entourage" pose on the beach during a break from filming an episode of Season 5 set in Mexico.

Judging from all the elements in this photo,
(Credit: HBO Photo)

Judging from all the elements in this photo, Turtle and Drama are on the Hollywood set of Drama's TV show "Five Towns" in this scene from Season 5 of "Entourage."

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Johnny Drama (Kevin Dillon) and Turtle (Jerry Ferrara)
(Credit: HBO Photo)

Johnny Drama (Kevin Dillon) and Turtle (Jerry Ferrara) in scene from Season 5 of "Entourage."

Kevin Dillon as "Johnny Drama" in Season 5
(Credit: HBO Photo)

Kevin Dillon as "Johnny Drama" in Season 5 of "Entourage."

Virgin Group Founder and Chairman Sir Richard Branson,
(Credit: Getty Images)

Virgin Group Founder and Chairman Sir Richard Branson, center, is joined by the cast of HBO's Entourage, from left, Executive Producer and Creator Doug Ellin, Jerry Ferrara, Kevin Dillon, Kevin Connolly and Adrian Grenier at the Entourage launch of Virgin America's new JFK-Las Vegas route at JFK International Airport.

Cast members, from left, Jerry Ferrara, Kevin Dillon,
(Credit: MCT Photo)

Cast members, from left, Jerry Ferrara, Kevin Dillon, Kevin Connolly, Adrian Grenier and Jeremy Piven arrive for the fifth season premiere of HBO's Entourage at the Ziegfeld Theater in New York City.

Actors, from left, Jerry Ferrara, Kevin Dillon, Kevin
(Credit: AP Photo)

Actors, from left, Jerry Ferrara, Kevin Dillon, Kevin Connolly and Adrian Grenier arrive for the fifth season premiere of HBO's "Entourage" at The Ziegfeld Theater.

A studio portrait of the four stars of
(Credit: HBO Photo)

A studio portrait of the four stars of the HBO series "Entourage," from left, Jerry Ferrara, Adrian Grenier, Kevin Connolly and Kevin Dillon.

Jerry Ferrara, Kevin Dillon, Kevin Connolly and Adrian
(Credit: Getty Images)

Jerry Ferrara, Kevin Dillon, Kevin Connolly and Adrian Grenier attend the premiere of the fifth season of "Entourage" at the Ziegfeld Theater.

The five stars of the HBO series "Entourage,"
(Credit: HBO Photo)

The five stars of the HBO series "Entourage," from left, Jerry Ferrara, Kevin Dillon, Adrian Grenier, Kevin Connolly and Jeremy Piven