Season One

1. Ali Larter

Character: Herself, pissed that Vince is blowing her off at a party.

First Appearance: Episode 1.1: "Entourage"

2. Arielle Kebbel

Character: Layla, the girl who almost hooks up with Drama after the "Head On" movie premiere

First Appearance: Episode 1.1: "Entourage"

3. Angie Patterson

Character: Deborah, the girl who chats with E after the movie premiere.

First Appearance: Episode 1.1: "Entourage"

4. Jessica Alba

Character: Herself, hosting the party where Vince met Justine.

First Appearance: Episode 1.2: "The Review"

5. Leighton Meester

Character: Popstar Justine Chapin, who once claimed to be saving her virginity but soon puts out for Vince.

First Appearance: Episode 1.2: "The Review"

6. Monica Keena

Character: Kristen, USC grad student and E's soon-to-be-cheating and ex-girlfriend

First Appearance: Episode 1.3: "Talk Show"

7. Sara Foster

Character: Herself; she hooks up with Vince before appearing on "Jimmy Kimmel Live."

First Appearance: Episode 1.3: "Talk Show"

8. Charlotte Ayana

Character: Joanne, the slightly crazy, sl*tty fan girl who's obsessed with Vince. She sent a picture of herself nekked so Turtle flew her up so she could go bowling with him and the rest of the crew.

First Appearance: Episode 1.4: "Date Night"

9. Perrey Reeves

Character: Mrs. Ari, the former soap opera star, complete diva, and absolute cougar.

First Appearance: Episode 1.4: "Date Night"

10. Beau Garrett

Character: Fiona, Vince's vegan, health-obsessed girlfriend that he meets at the gym.

First Appearance: Episode 1.5: "The Script and the Sherpa"