| 角色 | 演員 | 備註 |
| Zachary 'Zack' Morris (86 episodes, 1989-1993) | 馬克-保羅·戈塞拉（Mark-Paul Gosselaar） | |
| Albert Clifford 'A.C.' Slater (86 episodes, 1989-1993) | 馬里奧·洛佩茲（Mario López） | |
| Samuel 'Screech' Powers (86 episodes, 1989-1993) | 達斯汀·戴蒙德（Dustin Diamond） | |
| Lisa Turtle (86 episodes, 1989-1993) | Lark Voorhies | |
| Jessica 'Jessie' Myrtle Spano (75 episodes, 1989-1993) | 伊麗莎白·伯克利（Elizabeth Berkley） | |
| Kelly Kapowski (74 episodes, 1989-1993) | 蒂凡妮·西森（Tiffani Thiessen） | |
| Mr. Richard Belding (72 episodes, 1989-1993) | Dennis Haskins | |
| Max (21 episodes, 1989-1992) | Ed Alonzo | |
| Tori Scott (10 episodes, 1992-1993) | Leanna Creel | |
| Ox (9 episodes, 1991-1992) | Troy Fromin | |
| Student (8 episodes, 1990-1991) | Angella Kaye | |
| Leon Carosi (6 episodes, 1991) | 埃林·薩貝拉（Ernie Sabella） | |
| Stacey Carosi (6 episodes, 1991) | 麗亞·雷米尼（Leah Remini） | |
| Mr. Tuttle (5 episodes, 1989-1992) | Jack Angeles | |
| Ginger (5 episodes, 1992) | 布里吉特·威爾遜（Bridgette Wilson） | |
| Mr. Dewey (4 episodes, 1989-1992) | Patrick Thomas O'B.. | |
| Miss Simpson (4 episodes, 1989-1991) | Pamela Kosh | |
| Student (4 episodes, 1990-1991) | 斯考特·沃夫（Scott Wolf） | |
| Mrs. Melanie Morris (3 episodes, 1991) | Melody Rogers | |
| Jeffrey Hunter (3 episodes, 1991) | 帕特里克·茂頓（Patrick Muldoon） | |
| Miss Wentworth (3 episodes, 1989-1991) | 卡洛兒·勞倫斯（Carol Lawrence） | |
| Violet Anne Bickerstaff (3 episodes, 1990-1991) | 托蕊·斯培林（Tori Spelling） | |
| Kevin the Robot (3 episodes, 1989-1992) | Mike Lavelle | |
| Edgar Poindexter (3 episodes, 1989) | William Joseph Bar.. | |
| Moose (3 episodes, 1989-1992) | Mark Clayman | |
| Sylvester (3 episodes, 1992-1993) | Ryan Holihan | |
| Louise (3 episodes, 1990-1992) | Lara Lyon | |
| 'Big' Pete Stonebreaker (3 episodes, 1991-1993) | Bryan Cooper | |
| Larry (3 episodes, 1991-1992) | Kurt Krakowian | |
| Franklin Finkley (3 episodes, 1991) | Michael Warwick | |
| Mr. Spano (2 episodes, 1991) | George McDaniel | |
| Frank Benton (2 episodes, 1991) | Stephen Mendel | |
| Derek Morris (2 episodes, 1990-1992) | John Sanderford | |
| James (2 episodes, 1990-1991) | Mark Blankfield | |
| Dr. Turtle (2 episodes, 1991-1992) | Susan Beaubian | |
| Leslie (2 episodes, 1991) | Barbra Brighton | |
| Eric Tramer (2 episodes, 1991) | Joshua Hoffman | |
| Major Slater (2 episodes, 1989-1992) | Gerald Castillo | |
| Laura Benton (2 episodes, 1991) | 詹妮佛·麥考姆（Jennifer McComb） | |
| Mr. Breskin (2 episodes, 1992) | Vaughn Armstrong | |
| Himself (2 episodes, 1989-1991) | Casey Kasem | |
| Mr. Sachs (2 episodes, 1991) | Bernie Hiller | |
| Christina (2 episodes, 1991) | Eva Loseth | |
| Ronald Geekman (2 episodes, 1990-1992) | Richard Israel | |
| Coach Sonski (2 episodes, 1991) | Monty Hoffman | |
| Mr. Moody (2 episodes, 1991) | Lew Horn | |
| Rhonda Robistelli (2 episodes, 1989) | Kirsten Holmquist | |
| Maxwell Nerdstrom (2 episodes, 1990-1992) | Jeffrey Asch | |
