Lord Wily, also known as just Wily (ワイリー Wairi) or Dr. Wily (Dr.ワイリー Dokutā Wairi), is a human antagonist in the Mega Man Battle Network series and the leader of WWW (World 3).

Wily has fathered children in the multiple continuities. In the games, he is Dr. Regal's father and Baryl's foster-father. In the anime, he is Dr. Regal and Ms. Yuri's adoptive father.

Wily is a truly devoted villain, his classic series counterpart. He is driven by madness, greed, and rage from his failure to defeat MegaMan and (indirectly) Dr. Hikari, who he hates. This insanity seems to grow more violent over time, as his plots become more haphazard, and his regards to the sanctity of life drift away completely. He is, however, overly persistent, able to walk away from any setback and start anew.

Despite his capability for committing great crimes against humanity and evil, Lord Wily in this incarnation showcases some instances of humanity, and to his wretchedness, a reason for why he is the man he is today. In the endings of Mega Man Battle Network 5, Wily approaches his wayward son Regal and tells him that he was not the greatest father he could have been, erasing his memory of the past ten years. He mentions that he would never use the SoulNet (Kokoro Server) like Regal had to take over the minds of others, proving that he is not evil to the point of being supremely totalitarian and throwing away his humanity. As revealed in Mega Man Battle Network 6, he also briefly gave up on evil when raising Baryl, whose parents were participating in an unspecified war, and were likely close friends to him for leaving him in his care. After Baryl's last parent was revealed to have been killed in battle, he relapsed, ensuring he became a villain by the first Mega Man Battle Network. This likely implies that although he was willing to get his revenge on his unbeatable rival, at that point in time, he was willing to just simply direct his jealousy at his adversary; the point that when Baryl's parents died in the world that was essentially directed by Hikari's innovations drove what jealousy and madness that already persisted into sadness and resentment, giving him a weighted, albeit possessive and irrational, reason to start the WWW and eradicate Net Society.

At the end of the Mega Man Battle Network 6, Wily has seemingly given up his former life. He cooperates with the authorities interrogating him in the aftermath of the Cybeast incident, and even sends Lan a letter of thanks for showing him the error of his ways. In the series' epilogue, it's revealed that he also created new Colonel and Iris programs designed to help in peacefully maintaining the Net.

(Source: Megaman Wiki)