Power Girl: Old Friends

Fire

Beatriz da Costa

Ice

Tora Olafsdotter

Ace the Bat-Hound

from Batman

Batman

Dick Grayson

Hourman

Rick Tyler

Maxwell Lord

Justice League

Sandy Hawkins

Sandy; Sand; Sandman; Sandmaster

Skeets

Booster Gold's security robot

Calculator

Cyclone

Maxine Hunkel

King

The Whip's horse

Noah Kuttler

Calculator

Professor Ivo

Anthony Ivo / Anthony Ives, DC

Doctor Fate

Dr. Kent V. Nelson

Judomaster

Sonia Sato

Ten of Spades

Melanie Walker, from Batman Beyond

Typhoon

David Drake, Firestorm villain

Gavril Ivanovich

Rocket Red

King Chimera

Anna Fortune

DC, magic user

Divine

Power Girl (Kara Zor-L) clone

Manuel Carlito

Siphon, from DC