Photo: Retna

It’s not the guest stars and the cameos that keep us coming back to Entourage season after season, but they certainly keep things interesting. While our main boys play characters on the HBO program, which follows the L.A. exploits of movie star Vince Chase and his entourage of best friends, the celebrity guest stars play themselves—albeit highly dramatized versions. Every episode, a new selection of Hollywood A-listers caricature themselves in their hilarious appearances, and we can’t wait to see who this (final!) season brings. (Hint: Alex Rodriguez and Charlie Sheen are rumored to be in the mix!) To prepare for the season 8 premiere this Sunday, we’ve listed our favorite celeb appearances of seasons past:

Mandy Moore

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Unlike lots of other actors, Mandy Moore’s appearance on the show casts the singer/actress in a positive light. As Vince’s ex-girlfriend who he’s still totally in love with, we see a sweet, vulnerable side of the movie star who usually gets whatever girl he wants.

Zac Efron

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Zac only shows up for a few minutes in season 6, but his straight-faced performance had us laughing out loud. In his cameo, he ditches his agent because the guy had promised Disney Zac would do a shirtless lunchbox. A mom with a tween daughter overhears the conversations and buts in “I’d buy that lunchbox.” So would we…so would we.

Anna Faris

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The Scary Movie and House Bunny is adorable when she and E (Vince’s manager and best friend) get into a fender-bender on the L.A. streets. The rest of the episode, E is convinced that they “shared a moment.” Did they or didn’t they? That’s a question we’ve all dealt with ourselves once or twice!

Kanye West

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Kanye saves the day when Vince and the guys are stranded at the airport on the way to Cannes. The rap star gives the fellas a ride on his massive plane, and freaks them all out when he (jokingly) announces over the P.A. system that he’ll be piloting the ride.

Jamie-Lynn Sigler

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Jamie-Lynn gets angry when the whole town finds out about her mile-high hookup with Turtle, one of Vince’s (more chubby) buddies. Eventually, the pair become a full-time couple. Nobody can believe the leading lady is dating the Turtle, but we could- he’s totally lovable!