PSI (Gayle Marsh)	BIOGRAPHY
Created by Paul Kupperberg and Carmine Infantino

PERSONAL DATA

Real Name: Gayle Marsh
Occupation: Student
Status: Deceased
Place of Birth: Skokie, Illinois
Citizenship: American
Marital Status: Single
Known Relatives: Unnamed parents (deceased)
Base of Operation: Chicago, Illinois
Group Affiliation(s): Suicide Squad
Gender: Female
Height: 5'3"
Weight: 103 lbs.
Eyes: Blue
Hair: Black
First Appearance: Daring New Adventures of Supergirl #1 (November 1982): "A Very Strange and Special Girl"
Creators: Paul Kupperberg and Carmine Infantino

HISTORY

Gayle Marsh had a normal childhood until the age of twelve, when she developed extraordinary psychokinetic powers. After her parents died, she was tutored by the scientist Daniel Pendergast, who prepared her to fight a vague threat he called "the Decay". As a college student, Gayle took on the costumed alias of Psi, and repeatedly battled Power Girl, whom she had mistaken for an ally of the Decay. After realizing that "Decay" was actually Pendergast himself, a living manifestation of his own fears, she put a stop to both Pendergast and herself. Trying to atone for the bad she had done, Psi later joined the Suicide Squad (II) for a mission in Russia, where she was tragically killed by the Rocket Red Brigade.

[Note: The theory that Psi fought Power Girl post-Crisis has not been confirmed on-panel, but it seems reasonable since other enemies of the pre-Crisis Supergirl (such as Reactron) have been retconned into Power Girl foes.]

BLACK LANTERN: PSI

During the event known as the Blackest Night, a black ring descended upon Psi's corpse located in Belle Reve. The ring downloaded all of her memories and created a duplicate of her body that rose from the grave as a member of the Black Lantern Corps to prey upon the Suicide Squad and the Secret Six. Black Lantern Psi was destroyed by the explosion of a Manhunter which released spectrum energy. -Secret Six Vol. 3 #18

CHRONOLOGY

For a definitive list of appearances of Psi in chronological order click here

PROFILE REFERENCES

Who's Who: The Definitive Directory of the DC Universe #18 (August 1986)