KnightMan.EXE is a NetNavi from the Mega Man Battle Network series. He is operated by Princess Pride and was once a member of the NetMafia Gospel. He later went on to join Team Colonel upon MegaMan's request.
KnightMan always addresses his operator with terms like "ma'am" or "sir".
 In The Games
 MegaMan Battle Network 2
Princess Pride and KnightMan join Gospel in the hopes that Gospel will not attack Creamland like they are with YumLand and Electopia. Once in Gospel, the two of them are ordered to act as spies during a secret ONBA meeting in Netopia Castle. Once in the meeting, they are supposed to delete all of ONBA's information regarding Gospel's plans as well as kill all of the NetBattlers at the meeting. After the start of the meeting, Princess Pride activates the castle's trap system, which results in all of the attendees falling into the basement of the castle and getting caught in a variety of deadly traps. Lan and MegaMan make there way to where Princess Pride is, and Lan sends MegaMan into the Castle Comp to fight KnightMan. When MegaMan encounters him, he questions him as to why he is doing all of this and KnightMan hesitates. He then follows Princess Pride's order to fight MegaMan and loses.
 MegaMan Battle Network 5: Team Colonel
Princess Pride and KnightMan go to Oran Isle to mine MagnoMetal for Creamland. However, while mining, the MagnoMetal starts to drive KnightMan crazy and Princess Pride loses control of the drill, causing earthquakes throughout the island. Lan and MegaMan then come and find her and MegaMan takes down KnightMan. After this, KnightMan agrees to join Team Colonel and he becomes MegaMan's first Double Soul.
When Nebula actives the SoulNet, Princess Pride and KnightMan are two of the many victims. KnightMan is found protecting the server located on Oran Isle and after he is defeated, MegaMan is able to destroy it. Princess Pride and KnightMan then return to normal.
KnightMan then plays an important role at the Dark Chip Factory. He is the first team member to sacrifice himself to the Dark Galaxy in order to let MegaMan escape. He then reappears a little later to save MegaMan from the Darkloids on his way to fight Nebula Gray. He sends his power to MegaMan so he can take out Nebula Gray.
 In The Anime
He appears as Princess Pride's Navi once again. He is being hunted down by Gospel so they can destroy him and get ahold of a new defense program that was installed into him, however him and MegaMan are successfully able to take out ShadowMan who was trying to delete him.