This page lists all the characters in the Nintendo Cinematic Universe, and the Marvel Cinematic Universe characters they replace.
Heroes[]
Little Mac (Bruce Banner/Hulk)
David "Snake" Hayter (War Machine, post-Civil War)
Meta Knight (Sam Wilson/Falcon)
Sonic (Peter Parker/Spider Man)
Fox McCloud (Peter Quill/Star-Lord)
Falco Lombardi (Rocket Raccoon)
Wolf O'Donnell (Drax the Destroyer)
Grookey/Thwackey/Rillaboom (Groot)
Robin Lowell (Doctor Strange)
Palutena (Wanda Maximoff/Scarlet Witch)
Shulk Howden/Monado (Clint Barton/Hawkeye/Ronin)
Isaac the Inkling (T'Challa/Black Panther)
Darius the Inkling (M'Baku)
Mikhael "Heavy" Tkachev (Bucky Barnes)
Ryuko Matoi (Carol Danvers/Captain Marvel)
Kiba (Jane Foster/Mighty Thor)
Angie the Inkling (Nakia)
Marie the Inkling (Queen Ramonda)
Pit (Pietro Maximoff/Quicksilver) (i'm sorry he's not hawkeye)
Luigi (Rhodey/War Machine, up to Civil War)
Pichu (Hope Van Dyne/Wasp)
Ann Takamaki (Janet van Dyne)
Villains[]
Ganondorf (Cull Obsidian)
Bayonetta (Proxima Midnight)
Shadow Joker (Corvus Glaive [Light of Infinity)
Roy (Corvus Glaive [Requiem])
Galleom (Thresher) (wheels not pictured)
Joel Vincent (Justin Hammer)
Galacta Knight (Destroyer)
Phil Spencer (Alexander Pierce)
John-117/Master Chief (Brock Rumlow/Crossbones)
Dharkon (Dormammu/Leviathans)
Corviknight (Darren Cross)
James McCloud (Ego, human form)
Andross (Ego the Living Planet)
Miscellaneous[]
Princess Peach (Pepper Potts)
Reggie Fils-Aime (Nick Fury)
Jambelievers (Asgardians)
Hyness (Termina captain, voice only)
Masahiro Sakurai (Secretary Ross)
Flamberge (original to NCU)