Jenni Farley plays as Self in Jersey Shore: Family Vacation.
Jenni Farley is the top #1 member of the cast and appears in 111 episodes.

Mike Sorrentino plays as Self in Jersey Shore: Family Vacation.
Mike Sorrentino is the top #2 member of the cast and appears in 111 episodes.

Deena Nicole Buckner is an American reality television personality who appeared on the MTV reality show Jersey Shore from 2011 to 2012. Description above from the Wikipedia article Deena Nicole Cortese, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Deena Cortese plays as Self in Jersey Shore: Family Vacation.
Deena Cortese is the top #3 member of the cast and appears in 111 episodes.

Ronnie Ortiz-Magro plays as Self in Jersey Shore: Family Vacation.
Ronnie Ortiz-Magro is the top #4 member of the cast and appears in 111 episodes.

Nicole Elizabeth LaValle, best known by her nickname Snooki, is an American reality television personality. She is best known for being a cast member of the MTV reality show Jersey Shore and starring in Snooki & Jwoww and Jersey Shore: Family Vacation.

Nicole Polizzi plays as Self in Jersey Shore: Family Vacation.
Nicole Polizzi is the top #5 member of the cast and appears in 70 episodes.

Paul DelVecchio plays as Himself in Jersey Shore: Family Vacation.
Paul DelVecchio is the top #6 member of the cast and appears in 44 episodes.

Vinny Guadagnino is an American reality television personality and actor, best known for his time on MTV's Jersey Shore.

Vinny Guadagnino plays as Himself in Jersey Shore: Family Vacation.
Vinny Guadagnino is the top #7 member of the cast and appears in 44 episodes.

Angelina Pivarnick is an American television personality, model, and singer who is best known for starring in the first two seasons of the MTV's reality show Jersey Shore and the VH1 show Couples Therapy. Description above from the Wikipedia article Angelina Pivarnick, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Angelina Pivarnick plays as Self in Jersey Shore: Family Vacation.
Angelina Pivarnick is the top #8 member of the cast and appears in 11 episodes.