A list of regular Neighbours characters from the 1990 season, organised by the number of episodes they were featured in. In 1990, a total of 237 episodes were broadcast.

1. Paul Robinson (137 episodes)
2. Helen Daniels (135 episodes)
3. Jim Robinson (131 episodes)
4. Joe Mangel (123 episodes)
5. Madge Bishop (116 episodes)
6. Harold Bishop (115 episodes)
7. Melanie Pearson (106 episodes)
8. Todd Landers (104 episodes)
9. Caroline Alessi (102 episodes)
10. Christina Alessi (101 episodes)
11. Matt Robinson (100 episodes)
12. Kerry Bishop (99 episodes)
13. Melissa Jarrett (97 episodes)
=13. Beverly Robinson (97 episodes)
15. Dorothy Burke (95 episodes)
16. Josh Anderson (91 episodes)
17. Ryan McLachlan (90 episodes)
18. Sky Bishop (79 episodes)
19. Cody Willis (78 episodes)
20. Des Clarke (74 episodes)
=20. Toby Mangel (74 episodes)
22. Doug Willis (59 episodes)
23. Eddie Buckingham (58 episodes)
24. Gemma Ramsay (51 episodes)
25. Lochy McLachlan (46 episodes)
26. Sharon Davies (46 episodes)
27. Adam Willis (40 episodes)
28. Pam Willis (37 episodes)
29. Gloria Lewis (22 episodes)
=29. Nick Page (22 episodes)
31. Jamie Clarke (18 episodes)
32. Bronwyn Davies (16 episodes)
33. Hilary Robinson (15 episodes)
34. Tom Ramsay (2 episodes)
35. Glen Donnelly (1 episode)

* Although only guest characters during the 1990 season, these characters would later be part of the regular cast