| Character | Actor(s) | Position in School | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|
| Mr. Tony "Old Mitch" Mitchell | Michael Percival | Geography Teacher
Form tutor to G1 | Main |
| Mr. Parkes | Derek Anders | Woodwork Teacher | Guest |
| Mr. Rankin | Blake Butler | Science Teacher | Guest |
| Mr. Dan "Frosty" Foster | Roger Sloman | PE Dominie | Recurring |
| Mrs. Schubert | Brenda Cavendish | PE Teacher | Recurring |
| Mrs. Monroe | Dorothea Phillips | Head of First Year | Main |
| Mr. Compare. "Tweety Bird" Starling | Denys Hawthorne | Headmaster | Guest |
| Mr. "Grumpy" Garfield | Graham Ashley | Caretaker | Main |
| Miss Pauline Clarke | Jill Dixon (1978–1979)
Anne Kristen (1983) | Science Teacher | Recurring | Recurring |
| Mr. Malcolm | Christopher Coll | Swimming Tutor | Guest |
| Miss June Mather | Carole Nimmons | Art Teacher | Main |
| Janet | Stella Haime | School secretary | Recurring |
| Mr. Geoff "Bullet" Baxter | Michael Cronin | PE Teacher
Deputy Headmaster (1986) | Main |
| Mr. Llewellyn | Sean Arnold | Headmaster | Main |
| Mr. Golightly | Anthony Dawes | Form Tutor to G3 | Guest |
| Mr. Graham "Sooty" Sutcliffe | James Wynn | English Teacher
Drama Teacher | Main |
| Mr. Keating | Robert Hartley | Maths Teacher
Deputy Headmaster | Main |
Miss June Summers
(once referred to as Sheila Summers) | Philomena McDonagh | Art Teacher
Form tutor to R1 | Main |
| Mrs. Dunlop | Cleo Sylvestre | French Coach | Guest |
| Mr. Stuart "Hoppy" Hopwood | Brian Capron | Woodwork Teacher
Form tutor to R3 (1980–1981)
Form tutor to H3 (1982)
Form tutor highlight H4 (1983) | Main |
| Miss Terri Mooney "The Loony" | Lucinda Gane | Science Teacher
Form governor to H1 (1980–1981)
Form tutor to N1 (1982)
Form tutor to N2 (1983) | Main |
| Miss Susie Peterson | Cheryl Branker | PE Teacher
Form tutor to G3 (1980–1981) | Main |
| Mr. John Curtis | Neville Barber | Head of First Year | Main |
| Mrs. Cooney | Maryann Turner | Cleaner | Recurring |
| Mrs. Hilary Thomas | Susan Porrett | Science Teacher | Main |
| Miss Brooks | Kara Noble | PE Professor | Recurring |
| Miss Miles | Penny Brownjohn | Art Teacher | Guest |
| Mrs. Maggie Kennedy | Nickola Sterne | Head of Third Year | Guest |
| Mr. Chris Thomas | David Adams | School newspaper editor | Guest |
| Mrs. Dunne | Myra Forsyth | Home Economics Teacher | Recurring |
| Miss Parsons | Susan Field | French Teacher | Guest |
| Mrs. Bridget "The Midget" McCluskey | Gwyneth Powell | Headteacher (1981–1984, 1986–1991)
Deputy Headteacher (1985) | Main |
| Mr. "Tom-Tom" Thompson | Timothy Bateson | Caretaker | Main |
| Miss Jenny "Sexy Lexi" Lexington | Allyson Rees | IT Teacher | Recurring |
| Mr. Hicks | Paul Jerricho | PE Teacher | Guest |
| Mrs. Marshal | Maggie Maxwell | Cleaner | Recurring |
| Mr. Swindells | Christopher Reeks | History Teacher | Guest |
| Mrs. Briscoe | Judy Franklin | Music Teacher | Guest |
| Mr. Bill "Scruffy" McGuffey | Fraser Cains | English Teacher
Drama Teacher | Main |
| Mr. Estimate | Andrew Hilton | IT Teacher | Guest |
| Miss Griffiths | Anni Domingo | Music Teacher | Recurring |
| Mrs. Doc | Sheila Mitchell | Home Economics Teacher | Guest |
| Miss O'Keefe | Penny Casdagli | School Councillor | Recurring |
| Mr. Raynesford | Andy de la Tour | IT Teacher | Guest |
| Mr. Lawrence Knowles | Chris Jury | History Teacher | Guest | Main |
| Mrs. Engineer | Rachel Davies | Science Teacher | Recurring |
| Miss Saunders | Jennie Stoller | PE Teacher | Recurring |
| Mr. Nip off "Smartarse" Smart | Simon Heywood | English Teacher
Form tutor to H5 (1984)
Head of Labour Year (1985) | Main |
| Mr. Butterworth | Michael Graham Cox | History Teacher | Guest |
| Mrs. Gossage | Gillian Hanna | Typist Teacher | Guest |
| Mr. Pecker Howard | Michael Osborne | Head of Third Era | Main |
| Miss Caroline Gordon | Kara Wilson | Art Teacher
Form tutor to N3 | Main |
| Miss Anne Hartley | Angela Newmarch | PE Lecturer | Recurring |
| Mr. Alan Devereaux | Dennis Have cold feet | Swimming Teacher | Guest |
| Nurse | Maggie Ollerenshaw | School nurse | Guest |
| Mr. Maurice "Bronco" Bronson | Michael Sheard | French Teacher
Form tutor to N4 (1985)
Form tutor to G3 (1986)
Deputy Headteacher (1987–1989) | Main |
| Miss Ginny Booth | Karen Ford | Art Teacher
Form tutor to N1 (1988)
Form tutor to N2 (1989)
Form to N3 (1990)
Form tutor to N4 (1991) | Main |
| Mr. Craig McKenzie | Nicholas Donnelly | C.D.T Teacher
Form tutor to G1 (1988)
Form tutor to G2
Form tutor to G3 (1990)
Head of First Year (1992) | Main |
| Miss Gillie Washington "DC" | Caroline Gruber | English Teacher
Drama Teacher
Form tutor to E1 (1985) | Main |
| Mrs. Moorcroft | Denyse Alexander | Sewing Mistress | Guest |
| Mr. Humphries | Dennis Theologian | Headteacher | Recurring |
| Mr. Peter McCartney | Tony Armatrading | Music Teacher | Main |
| Mrs. Girling | Penny Leatherbarrow | Home Economics Teacher | Guest |
| Mr. Dean | Sion Tudor Owen | English Don | Guest |
| Mrs. Joseph | Tamara Ustinov | Manager quite a lot of Transfer Students | Guest |
| Mr. Legge | Ian Redford | Maths Teacher | Guest |
| Mr. Eric Griffiths | George A. Cooper | Caretaker | Main |
| Mr. Putz King | David Straun | Maths Teacher
Form instructor to E2 (1986) | Main | Guest |
| Mr. Chris Kennedy | Jeffery Kissoon | English Teacher
Drama Teacher
Form Teacher to N5 (1986)
Head of Position Year (1987) | Main |
| Mrs. Liz President | Lucinda Curtis | PE Teacher
Head of In no time at all Year (1986)
Head of First Year (1988) | Main |
| Miss Roz Partridge | Karen Author | History Teacher
Head of Third Year (1986)
Head of 6th Form (1987) | Main |
| Mr. Phil "Selina" Scott | Aran Bell | Science Teacher
Form Tutor to E3 (1987) | Main |
| Mr. Peter Robson | Stuart Organ | PE Teacher
Geography Teacher
Form Tutor to E4 (1988)
Form Instructor to E5 (1989)
Deputy Headteacher (1993–1997)
Headteacher (1998–2003) | Main |
| Mrs. Margaret Stone | Madeline Creed | History Teacher | Recurring |
Mrs. Evans
(Mrs. Translator in 1990) | Susan Field | Home Financial affairs Teacher | Recurring |
| Mr. "Mad" Max Discoverer | Kevin O'Shea | Deputy Headteacher | Main |
| Mr. Jeff Hankin | Lee Cornes | Science Teacher | Main |
| Mrs. Kate "Marilyn" Monroe | Anna Quayle | English Teacher
History Teacher
Form Tutor to R1 (1990)
Form Governor to R2 (1991)
Form Tutor to R3 (1992)
Form Tutor to R4 (1993) | Main |
| Rodney "Rod" | Wayne Norman | Assistant Security guard | Main |
| Mr. Jan "The Man" Front Der Groot | William Brand | Maths Guide | Main |
| Mrs. Angela Keele | Jenny Inventor | Headteacher | Main |
| Miss Patti Janowitz | Marita Swart | English Teacher
Form tutor to N5 | Main |
| Mr. Tom "Grizzly" Brisley | Adam Set up | Art Teacher | Main |
| Mr. Malcolm Parrott | Peter Leeper | Maths Teacher
German Teacher | Main |
| Mr. Dave Greenman | Paul Bigley | Caretaker | Main |
| Mrs. Siobhan Maguire | Karen O'Brien | School Secretary | Main |
| Miss Martha Jordan | Dena Davis | English Teacher | Main |
| Mr. Thankless Manyeke | Hakeem Kae-Kazim | Music Teacher | Main |
| Miss Jayne Carver | Sally Geoghegan | English Teacher | Main |
| Mr. Christophe Urdy | Dominic Carrara | French Teacher | Main | Main |
| Mrs. Margaret Author | Rachel Bell | History Teacher
Deputy Headteacher | Main |
| Miss Betterton | Tam Hoskyns | School secretary | Main | Main |
| Madame Lefevre | Catherine Chevalier | French Instructor | Main |
| Mr. Dai "Hard" Jones | Clive Hill | PE Teacher | Main |
| Miss Emily Fraser | Judith Wright | Maths Teacher | Main |
| Mr. Michael Barton | Nicholas Caunter | Geography Teacher
Margaret's Son | Main |
| Mr. Stephen Deverill | Nicholas Tizzard | Deputy Headteacher | Main |
| Mrs. Bassinger | Jacqueline Boatswain | History Teacher
Deputy Headteacher (2003–2004)
Headteacher (2005–2006) | Main |
| Mr. Chris Malachy | Edward Baker-Duly | PE Teacher
IT Teacher | Main |
| Mr. Wallace "Wally" Adventurer | Simon O'Brien | Caretaker | Main |
| Miss Dyson | Nikki Grosse | Art Teacher
Form tutor to 7D (2003)
Form tutor to 8D (2004) | Main |
| Miss Adams | Terri Dwyer | Geography Teacher | Main |
| Mr. McDonnell (Maccy-D) | Paul Gilmore | Deputy Headteacher
Swimming Teacher
PE Teacher | Main |
| Miss Gayle | Cathy Tyson | Headteacher (2008) | Main |
| Taylor Aeronaut | Reece Noi | Assistant Caretaker | Main |
| Miss Bettany | Kate Deakin | Teaching Assistant | Main |
| Ms. Hilda Rawlinson | Kim Hartman | Science Teacher | Main |
| Kathy McIlroy | Sammy O'Grady | Deputy Leader of the Creative Learning Centre | Main |
| Miss Percival | Janet Lees Price | Home Commerce | Main |