Anyway here's a first list of characters that aren't in the Roster Maker which I think deserve to be in. I divided them in Software House first and Franchises then when needed. Obviously some of them are simply famous videogame characters, not really related to Smash Bros. or Nintendo at all, but it seems to me that their inclusion would be good for other roster makings (like dunno, a Namco Vs Capcom game, or the new Playstation All-Stars, or an X-Box All-Stars, something like that):
Obviously, these come from franchises I know, maybe someone else could add some other stuff.
CAPCOM
- Resident Evil: Leon Kennedy, Chris Redfield, Jill Valentine, Nemesis, Albert Wesker, Claire Redfield, Ada Wong, Rebecca Chambers, HUNK
- Ghosts 'n Goblins: Arthur, Firebrand
- Street Fighter: basically everyone? Especially Ken, M. Bison, Guile, Zangief and Akuma are missing
SEGA
- You should check out the rosters in Sonic & Sega All-Stars Racing plus its sequel Sonic & All-Stars Racing Transformed, basically. Especially B.D. Joe from Crazy Taxi, Ulala from Space Channel 5, Beat from Jet Set Radio, Gillius from Golden Axe, Reala from Nights, Vyse from Skies Of Arcadia, Ryo from Shenmue...
Also ToeJam & Earl and Vectorman from their respective franchises should be in.
NAMCO BANDAI:
I know only their fighting games sadly, so here we go:
- Soul Calibur: Mitsurugi, Voldo, Astaroth, Cervantes, Maxi, Xianghua, Hwang especially.
- Tekken: Alex, Kuma, Panda, Ogre, King, Armor King, Jinpachi, Devil Jin, Sergei Dragunov ('cause I love him), Bob, Slim Bob, Mokujin, Combot, Eddy Gordo and others probably lol
RARE:
Now you already put a lot of Rare characters in, but the more the merrier in this case.
- Banjo-Kazooie: Bottles, Brentilda, Tooty, Jinjonator, Blobbelda, Mingella, Klungo, King Jingaling, Sergeant Jamjars, Master Jiggywiggy, L.O.G.
- Killer Instinct: since they're few, you should put them all in it. Fulgore can't be out though.
Also, maybe some random Pinata and the guys from Diddy Kong Racing (a lot are already in I think). And the protagonist of Kameo.
SUCKER PUNCH (Sony):
- Rocket from Rocket: Robot On Wheels (actually a Nintendo exclusive)
- Sly Cooper: Bentley, Murray, Carmelita Fox, Arpeggio, Panda King, Dimitri, Clockwerk, Neyla.
NAUGHTY DOG (Sony):
- Crash Bandicoot: Coco, Dr. Neo Cortex, N. Gin, Dingodile, Aku Aku, Polar, Ripper Roo, Fake Crash, Tiny Tiger
- Jak & Daxter: Gol, Metal Kor, Baron Praxis, Erol, Krew, Samos, Keira, Ashelin, Sig, Torn, Tess
- Uncharted: Elena Fisher, Victor Sullivan, Chloe Frazer
INSOMNIAC (Sony):
- Spyro The Dragon: Gnasty Gnorc, Ripto, The Sorceress, Hunter, Moneybags, Elora, Bianca, Sgt. James Byrd, Agent 9, Sheila, Bentley, The Professor, Sparx
- Ratchet & Clank: Qwark, Dr. Nefarious, Lawrence, Drek
Some MICROSOFT characters:
- Alan Wake
- Marcus Fenix, Dom, Baird, Cole, General RAAM from Gears Of War
- The cast of Left 4 Dead 1 and 2
Other random characters:
- Isaac Clarke from Dead Space
- Jack Cayman from MadWorld
- Some soldier from Battalion Wars
- Some of the protagonists of Grand Theft Auto
- Chell, P-Body, Wheatley, GLaDOS, Cave Johnson, Atlas from the Portal franchise
I think it's enough for now, lol. Obviously these are just suggestions and some of them are kinda impossible to fit in a Smash Bros. roster, or a fighting roster at all (like some of the Portal characters). I talked mostly about third parties because I think Nintendo is already really well represented.