Some of the gang

The resident good guys

[Cloud Strife]
[Aeris Gainsborough]
[Tifa Lockheart]
[Barret Wallace]
[Red XIII]
[Cid Highwind]
[Cait Sith]
[Yuffie Kisaragi]
[Vincent Valentine]

The other guys
[Shera]
[Bugenhagen]
[Professer Gast]
[Jessie, Biggs, and Wedge]
[Lucrecia]

Shinra
[President Shinra and Rufus]
[Scarlet, Palmer, Reeve, Heidegger]
[The Turks]

Mad Scientist
[Hojo]

The puppeteer and her puppet
[Jenova]
[Sephiroth]