1991 was Neighbours 7th year in production.
Neighbours opening title logo used throughout 1991.
Main characters[]
| Ranking | Character | Played by | Duration | Number of Episodes | Running total | Previous year's ranking |
|---|---|---|---|---|---|---|
| 1 | Doug Willis | Terence Donovan | Full year | 131 | 190 | 19 |
| 2 | Helen Daniels | Anne Haddy | Full year except August | 128 | 980 | 1 |
| 3 | Paul Robinson | Stefan Dennis | Full year except March | 120 | 922 | 1 |
| = | Joe Mangel | Mark Little | Until October | 120 | 417 | 3 |
| 4 | Dorothy Burke | Maggie Dence | Full year | 117 | 212 | 14 |
| 5 | Pam Willis | Sue Jones | Full year | 108 | 146 | 24 |
| 6 | Josh Anderson | Jeremy Angerson | Full year | 100 | 190 | 15 |
| 7 | Jim Robinson | Alan Dale | Until September | 99 | 933 | 2 |
| = | Glen Donnelly | Richard Huggett | Full year | 99 | 100 | 31 |
| 8 | Toby Mangel | Ben Geurens | Full year | 94 | 253 | 18 |
| 9 | Caroline Alessi | Gillian Blakeney | Full year | 93 | 197 | 7 |
| 10 | Madge Bishop | Anne Charleston | Full year except October and November | 91 | 802 | 4 |
| = | Christina Robinson | Gayle Blakeney | Full year | 91 | 192 | 9 |
| 11 | Todd Landers | Kristian Schmid | Full year | 88 | 382 | 8 |
| 12 | Harold Bishop | Ian Smith | Until September | 85 | 594 | 5 |
| 13 | Melanie Pearson | Lucinda Cowden | Until October | 84 | 230 | 6 |
| 14 | Lucy Robinson | Melissa Bell | From March | 80 | 409 | - |
| 15 | Sky Bishop | Miranda Fryer | Until October | 68 | 227 | 16 |
| = | Adam Willis | Ian Williams | Until September | 68 | 109 | 23 |
| 16 | Cody Willis | Amelia Frid | January-July, October | 58 | 138 | 17 |
| 17 | Gemma Ramsay | Beth Buchanan | Until July | 54 | 105 | 21 |
| 18 | Brad Willis | Scott Michaelson | From August | 37 | 39 | - |
| = | Brenda Riley | Genevieve Lemon | From August | 37 | 37 | - |
| = | Gaby Willis | Rachel Blakely | From August | 37 | 37 | - |
| 19 | Guy Carpenter | Andrew Williams | From September | 29 | 29 | - |
| 20 | Melissa Jarrett | Jade Amenta | Until April | 24 | 141 | 12 |
| 21 | Ryan McLachlan | Richard Norton | Until March | 18 | 107 | 15 |
| = | Matt Robinson | Ashley Paske | Until March | 18 | 183 | 10 |
| 22 | Phoebe Bright | Simone Robertson | September-November | 11 | 11 | - |
| = | Andrew Robinson | Shannon Holmes | From November | 11 | 11 | - |
| 23 | Faye Hudson | Lorraine Bayly | From November | 5 | 5 | - |
| 24 | Tom Ramsay | Gary Files | Until February | 4 | 66 | 30 |
Guest Characters
Who Lived Where?[]
- No 22 Ramsay Street - Paul Robinson, Christina Alessi, Caroline Alessi, Andrew Robinson (from November)
- No 24 Ramsay Street - Madge Bishop, Harold Bishop (until September), Gemma Ramsay (until July) Brenda Riley (from August), Guy Carpenter (from September)
- No 26 Ramsay Street - Jim Robinson, Helen Daniels, Todd Landers, Glen Donnelly (from March), Lucy Robinson (from March), Josh Anderson (from April)
- No 28 Ramsay Street - Doug Willis, Pam Willis, Cody Willis (until July), Adam Willis (until September), Gaby Willis (from August), Brad Willis (from August)
- No 30 Ramsay Street - Dorothy Burke, Ryan McLachlan (until March), Toby Mangel (from October)
- No 32 Ramsay Street - Joe Mangel (until October), Toby Mangel (until October), Sky Mangel (until October), Matt Robinson (until March), Melanie Pearson (until October)