First, the main characters that were also in the first game (aka classic characters)

Mario
Luigi
Peach
Yoshi
Bowser
Koopa Troopa
Toad

And now the players that joined throughout time!

Wario
Donkey Kong
Daisy
Toadette
Diddy Kong
Waluigi
King Boo
Birdo
Dry Bones
Baby Mario
Baby Luigi

And now for the people that made only 1 appearance who will hopefully come back.

Lakitu
Metal Mario
Dry Bowser

And now for new characters that I hope will appear!!

Dry Bowser Jr.
Hammer Bro.
Toadsworth
Goomba

See ya at the selanjutnya article!!