• Cunningham family

• Howard (Tom Bosley) - Husband and hardware store owner.
• Marion (Marion Ross) - Wife and homemaker.
• Richie (Ron Howard) - Son and high school student. The protagonist for the first six years of the series.
• Joanie (Erin Moran) - Daughter.

• Others

• Arthur "Fonzie" / "the Fonz" Fonzarelli (Henry Winkler) - First written in as a minor character, but became hugely popular, and made a series regular.
• Charles "Chachi" Arcola (Scott Baio) - Fonzie's younger cousin. Eventually married Joanie.
• Warren "Potsie" Weber (Anson Williams) - Richie's friend.
• Ralph Malph (Don Most) - Richie's friend. Left with Richie to join the army.
• Matsumoto "Arnold" Takahashi (Pat Morita) - First owner of diner (1975-1976). Returned after Al Molinaro departed (1982-1983).
• Al Delvecchio (Al Molinaro) - Diner owner/cook (1976-1982). His twin brother, Francis (also played by Molinaro), was a priest and married Joanie and Chachi in the series' last episode. Al himself married Chachi's mother.
• Marsha Simms (Beatrice Colen) - Carhop in first season.
• Leather Tuscadero (Suzi Quatro) - Musician. Sister of Pinky Tuscadero.
• Pinky Tuscadero (Roz Kelly) - Former girlfriend of Fonzie.
• Jenny Piccolo (Cathy Silvers) - Joanie's best friend (1980-1983). Mentioned often in early episodes, but never appeared in person until the 1980 season. Jenny's father appeared in one episode, played by Silvers' real-life father Phil Silvers.
• Lori Beth Cunningham (Lynda Goodfriend) - Richie's wife (1977-1982).
• Luisa Arcola (Ellen Travolta) - Mother of Chachi Arcola. Wife of Al Delvecchio.
• Melvin Belvin (Scott Bernstein) - nerdy classmate of Joanie and Chachi.

Last edited on Sun Jan 15th, 2006 12:01 pm by tny795