Fein (Japanese: フェイクFake) is a Cipher Peon who appears in Pokémon Colosseum. He is encountered after Wes has snagged 47 of the 48 Shadow Pokémon in the game. A series of emails on Wes' P★DA regarding his attacking people (most notably, the Jogger in Phenac City) with a Shadow Togetic, leads Wes to Outskirt Stand where he encounters an impostor of himself, dressed to look identical to him down to the very last feature. He is known as Shady Guy during battle, and his name will be the same as the player character's own.
Upon being defeated, he reveals himself to be Fein, a Cipher Peon and a master of disguise. He wanted to tarnish Wes's reputation around Orre; it nearly worked, as Wes became unpopular with some of Phenac City's citizens for a short while. But after watching the next TV broadcast, the citizens forgive Wes, realizing it was an impostor who did it and not Wes himself. Fein serves as the game's "super boss," since he has very high-leveled Pokémon.
Fein can be rebattled until his Shadow Togetic is snagged and he is beaten, after which he will vanish for good.
"Fufufu! The resemblence is uncanny, eh? You are me, and I am you, and we are all together here. I can see that you don't understand. But there is one thing certain! You're going to battle me!"
"It would take me to do it. Good going."
After being defeated
"My name is Fein! I am the master of disguise! How do you like the job I did? Your reputation's totally trashed! Mwahahahah!"
When the player rematches a Cipher Admin or Gonzap, if that person's Shadow Pokémon was snagged in one of the last matches, that person will use a replacement Pokémon. Excluding his Shadow Togetic, all of Fein's Pokémon are those replacements.