LT Koenig

"LT Koenig. Sorry about kicking your candy ass."

- LT Koenig to Agent Davis

LT Koenig is a veteran S.H.I.E.L.D. agent and the elder sister of Eric, Billy, Sam and Thurston Koenig.

Biography
To be added

Family

 * Father
 * Mother
 * Eric Koenig † - Brother and S.H.I.E.L.D. Colleague
 * Billy Koenig - Brother and S.H.I.E.L.D. Colleague
 * Sam Koenig - Brother and S.H.I.E.L.D. Colleague
 * Thurston Koenig - Brother

Allies

 * S.H.I.E.L.D.
 * Phil Coulson
 * Melinda May
 * Daisy Johnson/Quake
 * Davis

Enemies

 * Watchdogs
 * Leo Babikov †
 * Terrence Shockley

Trivia

 * In the comics, Ilsa Koenig was a Eric Koenig's sister and a member of the German Resistance in World War II. She was saved by the Nazis by the Howling Commandos, and dated Nick Fury for a short time.