Cut Man:

Stands at roughly the same height as Bass, without the scissors on his head though he stands a good foot shorter than Bass.
is one of the first six Robot Masters from the original Mega Man series, created by Dr. Light and Dr. Wily to be a timber-felling robot. Cut Man first appeared in the first Mega Man game, where he was reprogrammed by Dr. Wily to help him conquer the world. Cut Man was made to be nimble even on strong rain and wind. His Special Weapon is Rolling Cutter, a extremely sharp cutter made of highly resistant "ceramic titanium", being easily able to cut anything in half. He has the personality of a young and naive child who would rather try and resolve conflict through words, not fighting. He usually refers to people as Mr. or Misses.
Guts Man:

He stands a good few 3 ft taller than John.
He was created by Dr. Light and Wily for wilderness reclamation to help with constructions, along with Bomb Man. Guts Man is passionate and likes karaoke, but can be impatient and unreasonable at times. Guts Man and Stone Man are good friends.
Guts Man possesses great physical strength, being capable of lifting and transporting heavy objects like a rock of two tons. In battle, he can use his Super Arm to throw heavy objects, such as boulders and blocks, at his enemies. He can also use his strength to hit his enemies with a powerful tackle, and make the ground shake with his jumps.
In terms of personality, owing to his purpose, his personality is similar to that of a typical construction foreman.
Ice Man:

He is 5ft .
He was built by Dr. Light and Wily to perform human-like tasks under extreme climate conditions. This can be done due to the fact he is impervious to chilling sub-zero temperatures. Ice Man is capable of functioning in hot environments, though he is less powerful there. His Special Weapon is Ice Slasher, a sharp ice blade launched from his mouth that can freeze anything with its temperature of 200 degrees below zero.
A remake of the first game. Ice Man has a split personality, referring to himself as a kind soldier (in the first person) and as a tough commander (in the third person).
Fire Man:

He is 5ft 7
He was built by Dr. Light and Wily to work in an incinerator at a waste management facility and is able to wield flames that can reach 7000-8000 degrees. Fire Man can melt anything with his Special Weapon, Fire Storm, whose weapon system excellently combines offense and defense.
He speaks with a Southern accent, and is obsessed with justice and fire.
Bomb Man:

He stands at 5ft 7 as well
He was created by Dr. Light for demolition and land development, blasting away debris so that land could be cleared for construction projects, working in tandem with Guts Man. His Special Weapon is Hyper Bomb, an extremely powerful large bomb originally used only to destroy abandoned buildings. Bomb Man is able to create and throw Hyper Bombs with startling accuracy, allowing him to destroy most targets with ease.
He's obsessed with bombs, and can come off as rude. Though he still is quite a nice guy at heart.