I've assumed they're all English titles
Yes, they are.
Anyway, here's the Main Characters with the numbers corrected:
1|Ash|10|1|Satoshi
1|Misty||1|Kasumi
1|Brock||5|Takeshi
1|Tracey||81|Kenji
1|Max||279|Masato
1|May|10|277|Haruka
1|Dawn|10|469|Hikari
(The only one who needed their number changing was Tracey)
EDIT:
Supporting Characters:
2|Professor Oak||1|Dr. Yukinari Ōkido
2|Professor Elm||114|Dr. Utsugi
2|Professor Birch||277|Dr Odamaki
2|Delia Ketchum||1|Hanako
2|Officer Jenny||2|Junsa
2|Nurse Joy||2|Jōi
2|Gary Oak||1|Shigeru Ōkido
2|Professor Rowan||469|Dr. Nanakamado
EDIT 2:
Significant Others:
3|Flint||5|Munō|Brock's Father
3|Forest||5|Jirō|Brock's Brother
3|Salvadore, Yolanda, Tommy, Cindy, Suzie, Timmy, Billy and Tilly||5|Saburō, Yomoko, Gorō, Mutsuko, Nanako, Yaoki, Kurō and Tōko|Brock's Siblings
3|Todd||50|Tōru
3|Ritchie||75|Hiroshi
3|Professor Ivy||79|Dr. Uchikido
3|Casey||115|Nanako
3|Harrison||205|Hazuki
3|Macey||265|Moe
3|Caroline||279|Mitsuko|May and Max's Mother
3|Mr. Sukizō||289|Sukizō-san|Contest Judge
3|Raul Contesta||289|Contesta|Main Contest Judge
3|Drew||309|Shū
3|Vivian Meridian||311
3|Harley||380|Harley
3|Morrison||395|Masamune
3|Tyson||403|Tetsuya
3|Scott||409|Enishida
3|Lilian||420
3|Marion||469|Momoan|Shinou Contest Announcer
3|Johanna||469|Ayako|Dawn's Mother
3|Paul||470|Shinji
3|Zoey||479|Nozomi
3|Kenny|10|494|Kengo
3|Reggie||580|Reiji|A Pokémon Breeder, and Pauls older brother
I was wondering, should I delete Salvadore, Yolanda, Tommy, Cindy, Suzie, Timmy, Billy and Tilly and replace them with just 'Brock's Siblings'? It would make the name shorter, and would also mean Forest could be deleted and put in too.
EDIT 3:
Gym Leaders, Frontier Brains, Elites & Champions.
Kanto:
5|Daisy, Lily and Violet||7|Sakura, Botan and Ayame|Misty's Sisters
5|Lt. Surge||14|Machisu
5|Sabrina||21|Natsume
5|Erika||25|Erika
5|Koga||31|Kyō
5|Blane||55|Katsura
Orange League:
5|Cissy||82|Atsumi
5|Danny||90|Dan
5|Rudy||100|Jigī
5|Luana||105|Ruriko
5|Drake||108|Yūji
Johto:
5|Falkner||128|Hayato
5|Bugsy||141|Tsukushi
5|Whitney||152|Akane
5|Morty||175|Matsuba
5|Chuck||202|Shijima
5|Jasmine||201|Mikan
5|Pryce||230|Yanagi
5|Clair||245|Ibuki
Hoenn:
5|Roxanne||291|Tsutsuji
5|Brawly||296|Tōki
5|Wattson||316|Tessen
5|Flannery||331|Asuna
5|Norman||279|Senri|May & Max's Father
5|Winona||360|Nagi
5|Tate & Liza||375|Fū & Ran
5|Juan||387|Adan
Sinnoh:
5|Roark||483|Hyouta
5|Gardenia||499|Natane
5|Maylene||580|Sumomo
5|Crasher Wake||596|Maximum Mask
5|Fantina||609|Melissa
5|Byron||623|Tougan
Battle Frontier Brains:
5|Noland||412|Datsura
5|Greta||426|Kogomi
5|Tucker||430|Heath
5|Lucy||435|Azami
5|Spencer||440|Ukon
5|Anabel||446|Lila
5|Brandon||454|Jindai
Elites & Champions:
5|Bruno||68|Shiba
5|Prima||96|Kanna|AKA Lorelei
5|Lance||229|Wataru
5|Drake||378|Genji|Hoenn Elite Four
5|Agatha||409|Kikuko
5|Lucian||526|Goyō
5|Cynthia||531|Shirona
5|Wallace||589|Mikuri
5|Aaron||615|Ryou
EDIT 4:
Team Rocket:
6|Jessie||2|Musashi
6|James||2|Kojirō
6|Meowth||2|Nyarth
6|Cassidy||54|Yamato
6|Butch||54|Kosaburō
6|Giovanni||15|Sakaki
6|Dr Nanba||214|Dr Namba
6|Tyson||229|Tatsumi
6|Professor Sebastian||229|Shiranui-Hakase
6|Wendy||225|Jinjii
EDIT 5:
Misc Characters from Kanto Season:
4|Samauri||4|Samurai
4|Seymour||6|Rikao
4|A.J.||8|Akira
4|Giselle||9|Seiyo
4|Joe||9|Jun
4|Melanie||10|Midori
4|Damien||11|Daisuke
4|Bill||13|Masaki Sonezaki
4|Magikarp Salesman||15|Koiking-uri
4|Gentleman||15|Gentleman
4|Moe||256|Ryū
4|Brutella||256|Hag|Nastina's Cousin
4|Nastina||18|Hag|Brutella's Cousin
4|Sabrina's Father||21|Natsumi's Father
4|Suzy||27|Yuki
4|Antony||28|Asoki
4|Rebecca||28|Manami
4|Giant||28|Giant
4|Aya||31|Aya
4|Lara Laramie||32|Fūko Laramii
4|Dario||32|Dorio
4|Tommy||33|Tarō
4|Chopper||34|Masa
4|Tyra||34|Misa
4|Duplica||35|Imite.
4|Mikey||36|Taichi|Eevee Bros
4|Rainer||36|Mizuki|Eevee Bros
4|Pyro||36|Atsushi|Eevee Bros
4|Sparky||36|Raizō|Eevee Bros
4|Yas Gym Leader||39
4|Kas Gym Leader||39
4|Melvin||257|Magii
4|Cassandra||41|Kiyomi
4|Dr. Proctor||44|Doctor Doc
4|James's Parents||45|Kojirō's Parents
4|Jessibelle||45|Rumika
4|The Instructor||51
4|Timmy||54|Manabu
4|Oswald||59|Hirata
4|Stella||61|Atsuko
4|Santa Claus||203|Santa Claus
4|Professor Westwood V||63|Professor Nishinomori the 5th
4|Victor||64|Vincent
4|Florinda Showers||65|Lindow Murasame
4|Potter||65|Iwakaze
4|Cleaven Speilbunck||66|Heat Minamino
4|Katrina||66|Katsuko
4|Eve||69|Hokoto
4|Otoshi||70|Saizō
4|Mr. Charles Goodshow||71|President Tamaranze
4|Mandi||72|Kom|AKA The Astounding Mandi
4|Pete Pebbleman||73|Seiji
4|Melissa||74|Yoshiki
4|Jeanette Fisher||74|Kaoruko
4|Assunta||77|Sayuri
EDIT 6:
Misc Characters from Orange Season:
4|Hope, Faith & Charity||80|Tsunami, Konami & Minami|Professor Ivy's Assistants
4|Mateo||84|Isao
4|Marissa||84|Masami
4|Umberto||88|Tadokoro
4|Roger, Kay & Showboat Crew||86|John, Kei & Showboat Crew
4|Marina||87|Tsubaki
4|Ruby||91|Nana
4|The Captain||92
4|Emily||97|Emily
4|Ralph||97|Ralph
4|Ethan||98|Ford
4|Mahri||100|Marie|Sister of Rudy the Trovita Island Gym Leader
4|Tad||102|Hide
4|Captain Aiden||103|Russell
4|Gulzar||104|Junji
4|Travis||105|Kōji|Son of Luana
4|Quincy T. Quackenpoker||106|Midorikawa
4|Captain Crook||110|Debo
4|Scuz||110|Ghali
4|Poncho||111|Django
I'm not sure what to do with the following characters:
4|||46|Keita|Backpack thief in Farfetch'd episode|Never given dub name
4|||37|Old Man|Guy who wakes Snorlax in Snorlax episode|Never given dub name
4|||38|Dr. Akihabara|Episode never dubbed
4|||255|Kaiser|Safari Zone Warden|Episode never dubbed
4|||82|Senta|Cissy's Brother|Never given dub name
Any ideas?