This character is a member of the Decker family native to the mirror universe.
See Decker for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
For the primary universe counterpart, see Matthew Decker.
For other uses, see Matt Decker.

In the mirror universe, Admiral Matthew Decker was the Grand Admiral of the Imperial Starfleet and the commanding officer of the ISS Constellation in the 2270s. He was the father of Willard Decker.


In the year 2265, he was a commodore in command of the Constellation when he and his crew discovered the meta-genome that fast tracked the construction of Imperial Starbase 47, otherwise known as Vanguard.

In the year 2267, he took the Constellation to meet with the ISS Enterprise, to sort out the issue of command of the latter starship following its mission to Halka. However, by the time the rendezvous took place, the issue had already been resolved with the death of James T. Kirk and Decker merely confirmed Spock as the new captain. (TOS comic: "Fragile Glass")

In 2277, under orders from Empress Hoshi Sato III, Decker led a fleet to the Terra Nova system in the hopes of ambushing and destroying the ISS Enterprise. When the Enterprise arrived in the system, Admiral Spock quickly surrendered and had himself beamed aboard the Constellation to hear the charges laid against him by Decker.

Unfortunately, Spock had managed to persuade the Constellation's first officer, Commander Hiromi Takeshewada, to lead a mutiny. Takeshewada assumed command of the Constellation after shooting Decker in revenge for all the taunts that he had made against her. Spock succeeded Decker as Grand Admiral. (TOS - Mirror Universe novel: The Sorrows of Empire)

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Grand Admirals of the Imperial Starfleet
Garth of IzarMatthew DeckerSpockZhao Sheng TerranEmpire
Emperor John Gill's cabinet
Melakon (Security Minister) • Rota Sevrin (Science Minister) • Tristan Adams (Propaganda Minister) • Raymond Stiles (Genetic Purity Minister) • Harry Mudd (Revenue Minister) • Samuel Cogley (Minister of Vassal Affairs) • Matthew Decker (War Minister) TerranEmpire
Constellation personnel
United Earth, Earth Starfleet Constellation Monique Duvall Seal of United Earth United Earth Starfleet emblem
Federation, Starfleet USS Constellation (NCC-1017) AlamanzarR. ArmstrongM. DeckerGuthrieG. HowardJazayerliLawfordH. LitwakG. MasadaPonorL. RosenhausN. ShickeleSontorC. SooH. TakeshewadaE. Vascogne UFP seal Starfleet Command logo USS Constellation (NCC-1017) assignment patch
USS Constellation II R. CrossC. IkeyaA. MacDougallRaela hr'SassishI. SasoakaM. Walsh
USS Constellation
(Kelvin timeline)
DekkerLin UFP Kelvin seal 2250s alt cmd badge
mirror universe ISS Constellation
Terran Empire, Starfleet
Matthew DeckerPonorHiromi Takeshewada TerranEmpire
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