Knuckles the Echidna

Knuckles the Echidna
Official artwork of Knuckles from Sonic Forces.
Universe	Sonic the Hedgehog
Debut	Sonic the Hedgehog 3 (1994)
Smash Bros. appearances	Brawl SSB4 Ultimate
Most recent non-Smash appearance	Sonic Racing Crossworlds (2025)
Console/platform of origin	Sega Genesis
Species	Echidna
Gender	Male
Place of origin	Angel Island
Designed by	Takashi Yuda
English voice actor	Dan Green
Article on Wikipedia	Knuckles the Echidna

Knuckles the Echidna (ナックルズ・ザ・エキドゥナ, Knuckles the Echidna) is a character from the Sonic the Hedgehog series.

Origin

Knuckles digging for pieces of the Master Emerald on Red Mountain in Sonic Adventure.

Knuckles first appeared in Sonic the Hedgehog 3 and is one of the main characters of the Sonic the Hedgehog series. He is aptly named for both his spiked gloves and immense physical power, only rivaled by Sonic's supersonic speed. He lives alone on Angel Island, the location of an ancient and powerful jewel known as the Master Emerald, which is said to be able to control the power of all seven Chaos Emeralds. Since birth, he has been tasked with guarding the Emerald from potential intruders. He is serious and headstrong, but due to his isolation, very gullible and easy to manipulate. On multiple occasions, Knuckles was tricked by Dr. Eggman into thinking that Sonic was attempting to steal the Master Emerald. Due to this, along with their conflicting personalities, he sometimes clashed with Sonic as a rival. However, upon realizing his mistake, he assisted Sonic in defeating Eggman, and has since become a close ally.

In Super Smash Bros. Ultimate

As a playable character

Main article: Knuckles (SSBU)

Knuckles the Echidna, as he appears in Super Smash Bros. Ultimate.

Knuckles is a playable character in Super Smash Bros. Ultimate, created by the modder mRama. He was released on July 15th, 2025.

Spirits

Fighter spirits

• 
  Knuckles the Echidna (Fighter)