The Undertaker

The Undertaker is an antagonist and sometimes as an protagonist in the WWE. He started in 1990 as a heel when he was a mystery partner by Ted DiBiase Sr. In 1998, The Undertaker turned heel by reuniting Paul Bearer to form the Ministry of Darkness.

Villainous acts
Killing his parents by putting a fire on Death Valley. He almost killed his little brother Kane. He was known to be an antagonist.

Kidnapping the wrestlers and managers (including Stone Cold Steve Austin, Stephanie McMahon and Theodore Long)

Joining the Ministry of Darkness.

Defeating Big Bossman in a Hell in a Cell match by hanging him in the neck.

Burning Stephanie McMahon's Teddy Bear during the Inferno Match against Kane.

Joining the Corporate Ministry with Shane McMahon.

Interfering the Iron Man match between Triple H and The Rock at Judgment Day 2000 but was warned by Shawn Michaels.

Survived the Ladder Match for the Undisputed Champion, but he redeems himself by showing Jeff Hardy the full respect.