Murderers, criminals, psychopaths, Gods, etc. All a character needs to make this list is being dangerous.
The Top Ten
1Kratos (God of War)Kratos is a fictional character and the titular primary protagonist and anti-hero of the God of War video game series. He is a demi-god who seeks retribution and vengeance on Ares and later, the Greek Gods after he was betrayed and was forced to kill his family .
Kratos killed all of the Greek gods by without breaking a sweat. Of course he's number one! - RogerMcBaloney
He's a badass. My favorite moment in God of War 3 was when Kratos killed Cronos and cut him open from the inside.
2Scorpion (Mortal Kombat)Scorpion is a recurring player character and occasional boss character from the Mortal Kombat fighting game franchise created by Ed Boon and John Tobias. His debut is in the first Mortal Kombat game.
3Trevor Philips (Grand Theft Auto V)Trevor Philips is a fictional character in Grand Theft Auto V, a video game in the Grand Theft Auto series made by Rockstar Games.
Trevor is a psychopath who often goes on killing frenzies. He doesn't mind killing at all (he probably even likes it) and enjoys torturing people. - RogerMcBaloney
Still can't get that torture scene out of my head. So brutal!
4GLaDOS (Portal)GLaDOS is a fictional artificially intelligent computer system appearing in the video games Portal and Portal 2. The character was created by Erik Wolpaw and Kim Swift and voiced by Ellen McLain.
She controls the entire Aperture Science testing facility. Even the most powerful video game characters in existence would have a hard time beating her. - RogerMcBaloney
5Joker (Batman Arkham)
6Geralt of Rivia (The Witcher)
7Dante (Devil May Cry)Dante is a fictional character and the primary protagonist of the Devil May Cry series, created and published by Capcom.
8William "B.J." Blazkowicz (Wolfenstein)
He killed hundreds of Nazi soldiers all by himself. - RogerMcBaloney
9Sephiroth (Final Fantasy VII)Sephiroth is a fictional character and main antagonist in the role-playing video game Final Fantasy VII developed by Square.
10Micah Bell (Red Dead Redemption 2)
That damn rat!
Micah is the reason the Van Der Linde gang fell apart. He is a really bad and dangerous individual. - RogerMcBaloney
11Darth Revan (Star Wars: Knights of the Old Republic)
12Starkiller (Star Wars: The Force Unleashed)Galen Marek, codenamed Starkiller, was a male Human apprentice of the Sith Lord Darth Vader. A powerful Force-user who lived during the era of the Galactic Empire, Marek originated from the Wookiee home planet of Kashyyyk as the sole offspring of two Jedi Knights—Mallie and Kento Marek—who deserted ...read more.
Starkiller is one of the most powerful characters in Star Wars legends. He can easily beat Darth Vader by himself. - RogerMcBaloney
13Cole MacGrath (Infamous 2)Cole MacGrath is a fictional character, who is the main protagonist and player character of the 2009 PlayStation 3 video game inFamous and it's 2011 sequel inFamous 2.
14Sam Fisher (Tom Clancy's Splinter Cell)
15Samus Aran (Metroid)Samus Aran is the protagonist of the Metroid science fiction action-adventure game series by Nintendo.
16Zeus (God of War III)
17Ryu Hayabusa (Ninja Gaiden)Ryu Hayabusa is a fictional character who serves as the main protagonist of Tecmo's Ninja Gaiden action-adventure video game series, in addition to featuring as a player character in the Dead or Alive fighting game franchise by Koei Tecmo and Team Ninja.
18Vaas Montenegro (Far Cry 3)Vaas Montenegro is the secondary antagonist of Far Cry 3, appearing as the main antagonist for the first half of its storyline.
19Agent 47 (Hitman)Agent 47 is a fictional character and main protagonist of the Hitman video game series released by IO Interactive and Square Enix Europe.
20Sweet Tooth (Twisted Metal)
21Raiden (Mortal Kombat)Raiden is a video game character in the Mortal Kombat fighting game series by Midway Games. Making his official debut as one of the original seven playable characters in 1992's Mortal Kombat, he is one of the central characters of the franchise.