Because I cannot think of any role for other characters, so I will show their pokemon team until I think of a role for each(only some of them).
Shu: Charizard(mega Y), male Pyroar, Centiskorch(can Gigantamax), Volcarona, Incineroar(can do Z move).
Aiga: Lucario, Blaziken(can mega), Zamazenta Crowned Shield, Pangoro, Falinks.
Free(the only Elite Four has 2 main pokemon types beside Lui): Sawsbuck, Gogoat, Altaria, Sceptile(can mega), Garchomp(can mega).
Lui: Beartic, White Kyurem, Reshiram, Aurorus, Garchomp(can mega).
Dante(the only gym leader has 2 main pokemon types beside Souh, Phi): Dracozolt, Boltund, Haxorus, Drampa, Flapple(can Gigantamax).
Gwyn: Beheeyem, Alakazam(can mega), Reuniclus, Uxie(can't think of any pokemon for him T-T ).
Hikaru(final evolution pokemon + pokemon trainer, can dual battle with Hyuga sometimes): Shiny Rapidash, Braviary, Inteleon(can Gigantamax), Solrock, Lucario(can mega), Sandslash Alolan Form.
Hyuga(final evolution pokemon + pokemon trainer, can dual battle with Hikaru sometimes): Rapidash, Cinderace(can Gigantamax), Solrock, Flareon, Swoobat, Solgaleo.
Lane(final evolution pokemon): Eternatus(can Gigantamax), Toxtricity Low Key Form(can Gigantamax), Gallade(can mega), Tyranitar(can mega), Corviknight, Umbreon.
YOU ARE READING
Introduce about Beyblade Burst AU.
FanfictionThis will explain about some characters that you see on the 'Beyblade Burst and Undertale randomness'.So enjoy!