Arthur "The Fonz" Fonzarelli – the King of Cool. Sexy, funny and loaded with charisma. Older than the other kids.
Richie Cunningham – High School student, Fonzie's best friend, All-American, honest and reliable.
Howard Cunningham – Richie's dad, the quintessential Midwestern head of household. A man in his 40's who is also in the local order of Leopards.
Charles "Chachi" Arcola – Fonzie's cousin who tries to be just like him. Probably 15-16 and he likes Joanie. Plays with a yo-yo.
Pinky Tuscadero – Fonzie's love interest, sexy, confident, tough and a body to die for. Motorcycle daredevil. (no motorcycle riding in the show, though)
Marion Cunningham – Richie's mom, warm, naïve and wise. She is in her 40's.
Joanie Cunningham – Richie's younger sister, 15-16 years old, lovable, precocious and has a big crush on Chachi. Twirls a baton.
Lori Beth Allen - Sweet, lovely, "girl next door" type. Richie's girlfriend, high school student.
Ralph Malph – High school buddy of Richie's. He is the class clown.
Warren "Potsie" Webber – Richie's high school buddy, not very cool but tries hard to be. He is a little bit of a nerd.
Pinkette Lola – backup singer/dancer for Pinky Tuscadero.
Pinkette Tina - backup singer/dancer for Pinky Tuscadero.
Bully/Ensemble - big tough guy
Leopard Manny Moon/Ensemble - Howard's Leopard Lodge brother and principal of the high school
Myron "Count" Malachi/Ensemble - one-half of The Malachi Brothers, Fonzie's nemesis, greaser type, overly dramatic, in his 20's. As Count, he does show fancy wrestling moves.
Elvis/Ensemble – Elvis Presley circa late 50's.
Leopard Mac Gates/Ensemble - Howard's Leopard Lodge brother
Jumpy Malachi/Ensemble - other one-half of The Malachi Brothers, filled with nervous energy, greaser type, in his 20's. As Jumpy, he does show fancy wrestling moves.
James Dean/Ensemble - the 1950's movie icon
Arnold Delvecchio/Ensemble – A man in his 50's, owner of Arnold's Malt Shop, member of the Leopard Lodge.
Ensemble Boys – dancers/singers to play teenagers, rebels, etc.
Ensemble Men – Dancers/signers to play adult men and parents
Nerd Girl – nerd daughter of Principal Moon.
Ensemble girls/ladies – dancers/singers to play teenagers as well as Car Hop & Calendar Girls
Car Hop Girls – young ladies who can dance on roller skates. Proficiency on roller skates a must.
Calendar Girls – Teenage girls to adolescent ladies who can act sexy. May do the splits.
Ensemble Women – Dancers/singers to play adult women and parents