Psi was a Gestalt Character, the body and mind of Gayle Marsh, but the controlling mind of Daniel Pandergast. 
- Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.
- 9 Appearances of Gayle Marsh (New Earth)
- 10 Images featuring Gayle Marsh (New Earth)
- Quotations by or about Gayle Marsh (New Earth)
- Character Gallery: Gayle Marsh (New Earth)
Suicide Squad member