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The following is a list of Military Assault Command Operations (MACO) personnel.

Named personnel

Unnamed personnel

Combat training MACO

A MACO in 2153

This MACO arranged for combat training between MACOs and on-board Starfleet officers in 2153. He was the opponent of Travis Mayweather and used excessive force during their match. Their fight was part of the accusation, Lieutenant Malcolm Reed later used to discredit Major Hayes. (ENT: "Harbinger")

This MACO was played by stunt actor Jeff Wolfe who received no credit for his appearance.

Defense force MACO


This MACO, seen with S. Money, attempted to stop a Klingon-augment boarding party from uploading a virus into Enterprise computers in 2154. (ENT: "Affliction")

This MACO was played by an unknown actor.

Delegation guard

A MACO in 2154

This MACO was part of the team which guarded Tellarite ambassadors on board Enterprise in 2154. He guarded the quarters door and later arrested the Andorians after they tried to murder the Tellarite ambassadors. (ENT: "Babel One")

This MACO was portrayed by background actor Rife Sibley, who received no credit for his appearance. He had a mirror universe counterpart.

MACO (2153-2154)


This MACO served aboard Enterprise between 2153 and 2154.

He and R. Azar stood guard in cargo bay 2 while Captain Archer attempted to ruse information from Degra in a mock simulation. When Degra discovered the ruse, he boarded the simulator after Degra attacked the captain, and escorted the prisoner back to the brig. (ENT: "Stratagem")

He served as guard for Arik Soong while he was on Enterprise in 2153. (ENT: "Borderland")

Along M. Romero, W. Woods, and another MACO, he welcomed the Tellarite ambassadors aboard Enterprise. (ENT: "Babel One")

In 2154, he was one of the MACOs who guarded the Orion slave girls Maras, D'Nesh, and Navaar and was affected by their hypnotic abilities. (ENT: "Bound")

This MACO was played by an unknown actor, who received no credit for his appearances.

MACO private (2154)

A MACO in 2154

This MACO private was part of the group of MACO who defended Enterprise from the Klingon Augment boarding party in 2154. (ENT: "Affliction")

This MACO was played by stunt actor Jeremy Fry, who received no credit for his performance.

Raiding party member (2154)

A MACO in 2154

This MACO was part of the raiding party led by Captain Jonathan Archer in 2154, which boarded the Illyrian starship to rob technology and supplies. The team was attacked by the Illyrian soldiers but the mission became successful. This MACO was part of the last three officers who transported back to Enterprise. (ENT: "Damage")

This MACO was portrayed by stunt actor Zane Cassidy, who received no credit for his performance.

Sickbay guard


This MACO guarded the sickbay where Talas was treated after Naarg shot at her. He watched the last conversation between Talas and Shran, moments before she died in his arms. (ENT: "Babel One")

This MACO was played by background actor James McElroy, who also played a mirror universe MACO and previously appeared as a recurring background actor in the first four seasons of Star Trek: The Next Generation.

Ushaan guard


This MACO guarded Arik Soong during his arrival on Enterprise and escorted him to the brig. He was also on duty when the augments boarded the ship and rescued Soong. (ENT: "Borderland")

Later that year he served as guard during the Ushaan between Commander Shran and Captain Archer aboard Enterprise. (ENT: "United")

This MACO was played by background actor Seth Hendrix who received no credit for his appearances.

Young MACO

This MACO was assigned to Enterprise during the Xindi mission in 2153.

In 2153, he was part of S. Money's MACO team which was sent to welcome the Xindi-Reptilian boarding party near an airlock. When the airlock was blown off, the team opened fire but had to withdraw. (ENT: "Rajiin")

The name patch on his left arm clearly reads "B. Scott".

When Captain Archer was under the influence of Xindi-Insectoids, he was working in a shuttle bay and shot unconscious by the senior staff who tried to retake Enterprise. Later, he served at the tactical station on the bridge Hayes gave him a nod. He then moved toward the science station but was not there yet, having reached a position just outside the port turbolift doorway, when four Starfleet officers, including T'Pol and Malcolm Reed, invaded the bridge. He was shot unconscious again, this time by T'Pol. (ENT: "Hatchery")

This MACO was portrayed by stunt actor Justin Sundquist who received no credit for his appearances.
In the final draft script of "Hatchery", this officer was dispatched with a Vulcan martial arts maneuver executed by T'Pol, then disarmed by her, despite simply being shot by her instead on screen.
Sundquist also portrayed the mirror universe counterpart of this character.


Date Image Name Species Rank Position Cause Reference
February 12, 2154 Hawkins (KIA 2154 Hawkins, F. Human  Corporal  Security, Enterprise NX-01 Vaporized inside a sphere ENT: "The Council"
February 13, 2154 Hayes (KIA 2154 Hayes, J. Human  Major CO, MACO detachment, Enterprise NX-01 Shot while being transported ENT: "Countdown"
February 14, 2154 Forbes (KIA 2154 Forbes, M. Human   Security, Enterprise NX-01 Stabbed by a Xindi-Reptilian, fell to bottom of Xindi weapon. ENT: "Zero Hour"
For MACO casualties in the mirror universe, see either MACO personnel or mirror universe casualties.
Above are the only confirmed MACO casualties. There are numerous instances where a MACO is seen shot in one episode and apparently dies only to be seen in the next episode alive. Also, the name tags seen on MACO uniforms seem to switch at random, making an accurate count of KIAs impossible.


See also

Background information

Almost all of the MACOs were portrayed by stunt performers or actors with a stage combat background or experiences.

Due to the re-use of costumes and name tags, several performers portrayed one character, for example E. Hamboyan, who was played by at least three actors.


The complement of MACO on board Enterprise during the Xindi crisis is given as 36 in the novel Last Full Measure. Additional MACO named in this novel are Corporal Selma Guitierrez, Corporal McCammon, Corporal Meredith Peruzzi, and Private Colin Eby.