Name: Kevin O'Brien
Occupation: Engineer for Stark Industies
Legal Status: Citizen of the United States
with no criminal record
Other Aliases: None
Place of Birth: Unknown
Group Affiliation: None
Base of Operations: Long Island, New
First Appearance: (Kevin O'Brien) IRON MAN #31, (as Guardsman
I) IRON MAN #43
History: Kevin O'Brien was an engineer working
for the newly-opened Lakani island plant of Stark Industries
who came to the attention of Anthony Stark, when he
invented a stun-ray that managed to harmlessly disperse
a crowd of violent protestors. Stark invited O'Brien
to transfer to Stark's main plant on Long Island, New
York, and he accepted. Despite a careless streak that
once caused the laboratory he was working in to explode,
he became a close friend of Stark, and was soon appointed
head of Stark's research department. On several occasions,
O'Brien assisted Stark and his supposed bodyguard Iron
Man, who was really Stark himself, notably against
the Spymaster and the Espionage Elite, saving Tony'
Stark's life on more than one occasion. Stark then decided
to reveal to O'Brien that he was secretly Iron Man,
and to build for him s second suit of armor for use
in the event of an emergency. That emergency came a
short time later, when Iron Man and his girlfriend Marianne
Rogers were taken captive by the superhuman madman Mikas
the Soulfather. Putting on the armor before it was fully
tested, O'Brien fell prey to a malfunction in the cybernetic
curcuitry controlling the armor which apparently stimulated
the regions of the brain where rage and jealousy originate.
O'Brien found himself seized with sudden attraction
for Stark's girlfriend Marianne Rogers, and became extremely
jealous of Stark's power, looks and fortune. At the
same time Simon Gilbert, then chairman of the board
of Stark Industries' stockholders, grew alarmed that
Stark was moving out of munitions production and mapped
strategies with the board to seize controlling interest
in the firm from its principal stockholder, Stark himself.
O'Brien, clad in armor and calling himself the Guardsman,
offered to aid the board in their plot against Stark.
As a show of support, he agreed to quell a protest rally
outside the plant. The Guardsman aimed his repulser
rays at the crowd, injuring four protesters. Sickened
by what he did, O'Brien turned on the renegade board
members, roughing them up. But seeing Tony Stark's with
Marianne Rogers caused him to once again become unbalanced
and he went outside to vent his rage on the growing
crowd of protestors. Stark donned his Iron Man armor
and engaged the Guardsman in battle to prevent him from
doing more damage. Losing, the Guardsman sought refuge
in an experimental tank. In an attempt to stop him without
hurting him, Iron Man trained his repulsor rays on the
vehicle and accidentally hit its fuel supply. The tank
exploded, killing Kevin O'Brien.
Height: 5 ft. 10 in.
Weight: 175 lbs.
Strength Level: Without his Guardsman armor,
Kevin O'Brien possessed the normal human strength of
a man his age, height, and build.
Known Superhuman Power: None
Paraphernalia: The Guardsman I armor specs are
unknown at this time but it is assumed that they are
similar to the Guardsman