King Bradley/Wrath (Fullmetal Alchemist Brotherhood)
Most Felias (Hitsugi no Chaika)
Menthuthuyoupi (Hunter x Hunter)
Shigeo Kageyama (Mob Psycho 100)
Kakashi Hatake (Naruto)
Maito Guy (Naruto)
The Hyuga Clan (Naruto)
Saitama (One Punch Man)
Kenshin Himura (Rurouni Kenshin)
Meliodas (The Seven Deadly Sins)
Shachi Kamishiro (Tokyo Ghoul)
Kurama (Yu Yu Hakusho)
Donquixote Doflamingo (One Piece)
Monkey D.Luffy (One Piece)
Pharoah Atem/Yami Yugi (Yu-Gi-Oh!)
Asura (Asura's Wrath)
Sephiroth (Final Fantasy VII)
Ryu Hayabusa (Ninja Gaiden)
Jake Muller (Resident Evil)
Albert Wesker (Resident Evil)
DoomGuy (Doom series)
Asura (Asura's Wrath) enters his Mantra form through this.
Even with his easy-going attitude, Son Goku (Dragon Ball Z) felt rage at the loss of his friends when he faced Nappa ...
... and even with his heart tainted of seeing his best friend, Krillin, die before his eyes, it was a quiet but fierce battle against Frieza.
Princess Unikitty (The Lego Movie) has a powerful anger which she keeps intact with thinking positive.
Despite Doflamingo's (One Piece) relaxed attitude, he does have a temper, shooting Law three times, his plans for SMILE ruined, being dethrone, Luffy's interference and desperation to kill him, he still retains his trademark smile because he couldn't get any madder.
Kurama's (Yu Yu Hakusho) anger made him act on impulse to kill Gourmet and sentencing Toguro into a lifetime of suffering.
Despite his calm nature, Ryu Hayabusa (Ninja Gaiden) is also capable of feeling tremendous rage.
Even in their younger years, as part of the Hyuga Clan (Naruto) Neji and Hinata fight with controlled tempers and careful precision.
By using the pain of losing his wife, the loss of his limbs and his new agonizing cybernatics, Darth Vader (Star Wars) was of the most powerful Dark side users in universe.
Though carefree, Monkey D.Luffy (One Piece) can be silently yet extremely enraged.