| This minifigure has only appeared in video game(s)|
Although this article is about an official minifigure, it never existed in physical form, or appeared in any official LEGO sets.
Knuckles the Echidna is a non-playable character in LEGO Dimensions.
Knuckles the Echidna is a character of Sonic the Hedgehog franchise and the current guardian of the Master Emerald, a powerful ancient relic which is his solemn duty to protect from anyone who wants to abuse it. He is also the sole remaining descendant of the Knuckles Clan and last of the echidnas on earth. Knuckles is an old friend and rival of Sonic the Hedgehog.
Knuckles, alongside Shadow the Hedgehog, Big the Cat and Miles "Tails" Prower, is first shown imprisoned by Dr. Eggman and later released by Sonic. Later, he is seen with other Sonic's friends in a rift.
After main story of Sonic the Hedgehog is completed, Knuckles can be met in his own dimension and can give a quest to a player, where they both must beat 25 Badniks.
- In earlier games and TV shows of the franchise Knuckles was tricked by Dr. Eggman many times. He even notes that in a dialogue between him and player, in LEGO Dimensions.
- Knuckles the Echidna is voiced by Travis Willingham, who also voices Superman and Lex Luthor.