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Pharrell Williams performs during the 14th Mawazine World Rhythms International Music Festival in Rabat on May 30. He gives an impromptu concert near the start of the "Entourage" movie. Reuters

A constant theme of the HBO series “Entourage” was the marathon of celebrity cameos that would crop up at unexpected moments while the boys- Ari Gold, Vince, E, Turtle and Drama- would go about Tinseltown trying to break into the industry. Of course, in loyalty to the original show’s eight seasons, the “Entourage” movie is chockfull of celebrity appearances from producer Mark Wahlberg on down to “Shark Tank” host and business mogul Mark Cuban.

In keeping with the nature of the “blink and you’ll miss them” cameos, the names of Haley Joel Osment, Billy Bob Thorton, Emily Ratajkowski, and Ronda Rousey are omitted because they show up more than once in the “Entourage” movie for extended sequences. You’ll have to watch the movie to find these famous faces in the glitzy crowds:

1. Pharrell
In an effort to stave off showing his unfinished movie, Vince (Adrian Grenier) turns the crowd to Pharrell for a surprise performance. Pharrell is not happy on how the tables have turned, but obliges the now cheering crowd.

2. Liam Neeson
Apparently, Neeson and studio executive Ari Gold (Jeremy Piven) are not on good terms. The action star flips Gold the finger at a red light before speeding off and missing Gold’s priceless “Schindler’s List” dig.

3. Kelsey Grammer
Just as Gold and Mrs. Ari (Perrey Reeves) are heading into therapy, Kelsey Grammer comes storming out grumbling about his session.

4. Jessica Alba
Surprise, everyone seems to be mad at Gold. The actress threatens to walk of the set of her terrible sci-fi movie if Gold continues to hold out on her passion project.

5. Armie Hammer
The jealous ex of Emily Ratajkowski isn’t afraid to confront the guys and throw shade on their choice of salads for lunch.

6. T.I. and Tiny
The rapper and reality-TV star run into E (Kevin Connolly) and Sloan (Emmanuelle Chriqui) while waiting for a prenatal visit. T.I. is not happy to hear his wife, Tameka “Tiny” Harris, is pregnant once again.

7. Warren Buffet
One of the richest men on the planet stops by the world of “Entourage” on a golf cart to tell Gold to make things right between himself and his studio bosses.

8. Gary Busey
By the side of the pool and surrounded by shirtless men, Busey is busy doling out life advice to Hollywood hunks who just don’t get him.

9. George Takei
One of the last cameos in the film (stay a tad past the first few minutes of the credits) shows Lloyd’s (Rex Lee) wedding officiated by George Takei. The former Captain Sulu is not afraid to call out Gold on his obvious discomfort.

Here are the rest of the celebs you will see in the film:

Piers Morgan

Mark Cuban

David Arquette

Bob Saget

Jon Favreau

Andrew Dice Clay

Mike Tyson

Ed O'Neill

Billy Dec

Chad Lowe

Henry Penzi

David Spade

Common

David Faustino

Judy Greer

Tom Brady

Martin Landau

Matt Lauer

Maria Menounos

Terrence Jenkins

Alyssa Miller

"Entourage" hits theaters on Wednesday.