http://www.trigunworld.com/character_profile.php?ID=5

Name
LEGATO BLUESUMMERS
Voice Actor (Japanese)
Seki Toshihiko
Voice Actor (English)
Richard Hayworth
Roles
Gung-Ho-Guns
Memorable Quote
"Humans, how pathetic."
Description
Legato Bluesummers works for Millions Knives, the big villain. His left arm belongs to Vash. Legato is a nice looking guy on the outside (well..if you disregard the skeleton head on his shoulder), but his heart is cold and cruel. His goal is to make Vash kill a person purposely, so Vash could feel guilty. In the end, Legato succeeded.

Name
NICHOLAS D. WOLFWOOD
Voice Actor (Japanese)
Hayami Sho
Voice Actor (English)
Jeremy Nemoy
Roles
Main Cast
Weapon
Cross Punisher
Memorable Quote
"No, no. I can\'t do that! What am I thinking? I\'m a man of God for God\'s sakes!"
Description
The so called priest who carries a cross filled with automatic machines guns, Wolfwood is one of the most impressive characters in Trigun. He had a tough childhood, so he cares for littles kids very much. Wolfwood became good friends with Vash, through the friendship, he learnt no one has the right to take away another person\'s life.

Name
VASH THE STAMPEDE
Voice Actor (Japanese)
Onosaka Masaya
Voice Actor (English)
Johnny Yong Bosch
Roles
Main Cast
Weapon
Silver .45 Long Colt Revolver; Angel Arm (right arm); Hidden Gun (left arm)
Memorable Quote
"This world is made out of Love & Peace!"
Description
Vash is not your typical hero character. He\'s kind and would do anything to avoid injuries and blood in a fight. Vash lives with a "love & peace" attitude toward the world. Unfortunately, due to large amount of bounty money on his head and his bad reputation, the people around him often misinterprets the poor guy as a scary killer, one that has destroyed thousands of lives.
Vash is not a human being, he\'s a "plant". The word "plant" in this anime has the meaning of a creature of something greater than a regular "human being". Knowing this himself, Vash continues to live on as a regular human, he feels he\'s no different from any other live being on the planet and tries to help out other people in anyway he can.