What are the characters Mario and Sonic at Olympics Games?

Mario and Sonic are not "characters" in the *Mario & Sonic at the Olympic Games* series. They are the mascots of the games.

The games feature a large cast of characters from both the *Super Mario* and *Sonic the Hedgehog* franchises, including:

From the Super Mario Franchise:

* Mario

* Luigi

* Peach

* Daisy

* Toad

* Yoshi

* Waluigi

* Donkey Kong

* Diddy Kong

* Bowser

* Rosalina

* Dr. Mario

* Shy Guy

* Boo

* Toadette

From the Sonic the Hedgehog Franchise:

* Sonic

* Tails

* Knuckles

* Amy Rose

* Shadow

* Silver

* Blaze

* Espio

* Vector

* Charmy

* Metal Sonic

The cast of characters varies depending on the specific Olympic game being simulated. Some characters are exclusive to certain games, while others appear in multiple titles.