Li Yan

Li Yan is a secondary villain in the Sonic X comics. He was once a fierce street thug and leader of a gang called "The Bruiser Boys", who were seeking the Red Chaos Emerald to sell in on the market for large sums of money, but he and his gang were thwarted by Knuckles the Echidna and his human ally Hawk. Humiliated, Yan found his chance for revenge once he was called by the S.O.N.I.C.X. organization to defeat Sonic the Hedgehog and his allies, Knuckles included.

Personality
Yan's greatest characteristic is his intimidation factor, which relies on his size and strength. He is known to be a short-tempered thug who is really proud of his position, but this all changed after Knuckles and Hawk came in. His pride was hurt and his "honor" shattered, causing him to create a revenge against the duo. When he is not angry, Yan is usually a serious, fearsome individual, keeping a straight face wherever he goes.

Role in the comics
Yan appears as a S.O.N.I.C.X. member on Issue 23, after the group captures Sonic and takes him to their hideout in Prison Island. He reveals to Sonic that he wants revenge against Knuckles for humiliating him, but Sonic dismisses them and escapes. Yan's gang tries to stop Sonic, but he outruns them easily and manages to escape. Yan briefly reappears on Issue 25 as one of the many members shooting Dr. Kai Narasu's final Sonic clone, mistaking it for the original. All of his other appearances after that are cameos.

Role in the anime
Yan and his gang, The Bruiser Boys, make a brief appearance in the anime during Episode 17, "The Adventures of Knuckles and Hawk". After Knuckles meets the gang in a bar while looking for Hawk, he nearly initiates a fight until Yan enters the place and tells Knuckles that he knows where Hawk is. Knuckles follows him, only to fall into a jail cell where his friend is also trapped. However, they find out that Yan is eavesdropping on their conversation with a hidden microphone inside the cell, on which Knuckles yells, causing Yan to fall of his chair. Irritated, he goes to their cell, only to discover that Knuckles dug a way out for him and Hawk to escape. Yan isn't seen again afterwards.

Trvia

 * Li Yan holds many unique traits among the other members of S.O.N.I.C.X.
 * He is the only member whose revenge isn't towards Sonic, but Knuckles. His aggression towards Sonic is a way to indirectly hurt Knuckles, or so he claims.
 * He is the only member without any relations with the government or G.U.N.
 * He is the only group member which can truly be considered a criminal even before he lost his credibility.
 * He is the only group member from another part of the world. In the anime, Yan comes from a small Chinese suburb, and he speaks with a Chinese accent.