Extinction characters

Appears from the start

The former commander of Alamo remains aboard after the Nano fleet judges its work at Earth complete. The ship no longer accepts his authority, while the unauthorized truce he arranged leaves him responsible for a vast future troop commitment to the Macros.

Appears from the start

Riggs's former ship declares its Earth mission complete and departs with the other Nano vessels. It no longer recognizes him as command personnel and instead regards him as a possible test subject.

Also known as Kerr

First appears in chapter 2

Riggs's military contact on Earth presses him to regain control of Alamo after the Nano fleet leaves. He expects Riggs to restore a capability that has abruptly vanished.

Also known as Sokolov

First appears in chapter 3

One of Crow's generals, he challenges Riggs's authority at Andros and attempts to remove him from duty. Alamo responds by taking Sokolov away as a new test subject.

Also known as General Robinson, Robinson

First appears in chapter 4

A former general whom Riggs demotes while reorganizing Star Force. Riggs requires him to accept nanite enhancement before leading the strengthened Marines, a condition Robinson has not yet fully embraced.

Also known as General Barrera, Barrera

First appears in chapter 4

A former general demoted during Riggs's emergency reorganization. He accepts responsibility for securing the main base, restoring communications, and recalling Star Force personnel.

Also known as First Sergeant Kwon, Sergeant Kwon

First appears in chapter 4

The senior enlisted defender at Star Force's secret factory installation. He has already placed the guards on alert when Riggs arrives and warns that an outside assault may be imminent.

First appears in chapter 7

Riggs's partner arrives at the threatened factory base after he leaves her behind. She refuses his attempt to send her away and chooses to remain during the expected attack.

Also known as Crow

First appears in chapter 11

The returning commander of another Nano ship brings the reinforcements missing from the factory defense. His arrival restores badly needed personnel but immediately creates a dispute with Riggs over responsibility and command.

First appears in chapter 22

Crow's locally manufactured Nano ship prototype. He receives the vessel as Star Force begins recovering a space capability of its own and gives it the name Digger.

First appears in chapter 23

Riggs's locally built scouting ship is fast, armed, and intended for discovery missions. Its simplified design lacks the stabilizing system found in the original Nano vessels, making hard acceleration dangerous for its crew.

First appears in chapter 35

A member of Riggs's expedition command staff who manages operational displays as the transport of the Macros arrives. She confirms that Earth's defenses have been disabled for the landing.

Also known as Shrestha

First appears in chapter 40

The expedition's sensor specialist aboard the transport of the Macros. He interprets readings from the passive array that Riggs has installed outside the human cargo hold.

Also known as Yamada

First appears in chapter 44

The officer commanding Star Force's hover tanks on Helios. He directs the armored force around the newly established surface base as the stranded expedition prepares for attacks from the worm inhabitants.

Also known as Captain Saren

First appears in chapter 48

Sandra is now identified as the command staff officer previously known as Captain Saren. When Riggs returns from the tunnels after losing contact with the base, she confronts him because she believed he had been killed.

Also known as Chen

First appears in chapter 50

The sensor officer accompanying the assault on the Helios mountain. At the entrance, she detects an immense concentration of cold, motionless worm bodies beneath the advancing force.

Also known as Jensen

First appears in chapter 52

The replacement sensor operator in the mountain expedition after Chen is lost. His scans warn of a large open space directly ahead of the drilling column.

Also known as Roku

First appears in chapter 52

The tank commander responsible for the expedition's rear guard inside the artificial mountain. He holds the rear while the drilling column continues toward its objective.

Also known as Sloan

First appears in chapter 53

An injured drill-tank pilot who escapes his wrecked vehicle after the expedition falls into the central cavern. He joins Riggs's forward group amid continuing sniper fire.