Story: "The Secret Origin of the Suicide Squad" (38 Pages)

Credits:

John Ostrander (plot, script)
Luke McDonnell (pencils)
Dave Hunt (inks)
Albert DeGuzman (letters)
Carl Gafford (colors)
Robert Greenberger (edits)

Feature Characters:

Amanda Waller (Head of Task Force X and The Suicide Squad; last in Legends #5; next in Suicide Squad Vol. 1 #1; also in flashbacks in between flashbacks in Suicide Squad Vol. 1 #31 and in flashback in between flashback in Suicide Squad Vol. 1 #8 and flashback in issue #28)
Col. Richard R. Flag (last in Legends #5; next in Suicide Squad Vol. 1 #1; in flashbacks preceding Brave and Bold #25; also in flashbacks to events during Brave and Bold #25-#27, and in flashback in between panels of flashback in Action Comics #552, and in flashback in between flashback in Action Comics #552 and flashback in Suicide Squad Vol. 1 #50, and in flashback in between flashback in Suicide Squad Vol. 1 #50 and Action Comics #552, and in flashback in between Action Comics #553 and Legends #1)
Col. Richard M. Flag (first appearance; Richard R Flag's father; in flashbacks only; dies; in flashback in Suicide Squad Vol. 1 #26 in between flashbacks)
Karin Grace (in flashbacks preceding Brave and Bold #25; also in flashbacks to events during Brave and Bold #25-#27, and in flashback in between panels of flashback in Action Comics #552, and in flashback in between flashback in Action Comics #552 and flashback in Suicide Squad Vol. 1 #50, and in flashback in between flashback in Suicide Squad Vol. 1 #50 and Suicide Squad Vol. 1 #1)
Dr. Hugh Evans and Dr. Jeff Bright (both in flashbacks preceding Brave and Bold #25; also in flashbacks to events during Brave and Bold #25-#27, then both in flashback in between panels of flashback in Action Comics #552, then both in flashback in between flashback in Action Comics #552 and flashback in Suicide Squad Vol. 1 #50, and then both in flashback in between flashbacks in Suicide Squad Vol. 1 #50; all three as members of Mission X, the modern incarnation of Task Force X)
"Bashful" Benjy and Lt. Carson (first appearance of both; members of the Suicide Squadron; in flashback only)

Guest Stars:

Sarge Steel (last in Legends #5; next in Superman Annual Vol. 2 #1)

Supporting Character:

Sharon Race Flag (first appearance; Richard M. Flag's wife and Jeb Stuart's cousin; dies in flashback)
Joseph Waller (first appearance; Amanda's husband; dies in flashback)
Joseph Waller Jr. (Amanda's firstborn son)
Damita Waller (Amanda's firstborn daughter; first appearance of both; both die if flashback)
Martin Waller
Jessie Waller (first appearance of both; twins)
Coretta Waller (first appearance; Amanda's youngest daughter; all three next in flashback in Suicide Squad Vol. 1 #31)

Villains:

War Wheel
Candyman (first appearance; dies in flashback)
The Sportsmaster (in flashback only)

Guest Appearances:

Control of the OSS (in flashback only; last in ???; next in flashback in Suicide Squad Annual Vol. 1 #1; given control of the Task Force X division known as Argent)
Ace Morgan (in flashback preceding Showcase #6 / Secret Origins Vol. 2 #12/2),

Other Characters:

President Ronald Reagan (last in Green Lantern Corps #210)
Harry S. Truman (in flashback to 1951)
Steve (first appearance; an old boyfriend of Karen's; dies in flashback)
Marvin Collins (first appearance; a congressman)

Chronological Commments: This story takes place after Legends #6 and before Suicide Squad Vol. 1 #1

Commments: This isssue is bannered as "Legends Spin-Off, Chapter 22"