Onion Knight is a character from the Final Fantasy RPG Series. Onion Knight appeared the first time in Final Fantasy III and returned in different forms to multiple other Final Fantasy parts. The Onion Knight is representing FFIII in Final Fantasy Dissidia in which he is a playable character

 

See also: Fan Art of Onion Knight on Game-Art-HQ (not yet)

 

Final Fantasy Dissidia (2008)