First appearance

Clayface

Sources

Title Type Date Names Characters Series
The Murders of Clayface Comic 1940-06 Bill Finger, Bob Kane, Jerry Robinson Batman, Clayface

Basil Karlo

Sources

Title Type Date Names Characters Series
The Murders of Clayface Comic 1940-06 Bill Finger, Bob Kane, Jerry Robinson Batman, Clayface

Superman

Sources

Title Type Date Names Characters Series
Action Comics #1 Comic 1938-04-18
Revolution in San Monte, part one Comic 1938-04-18 Jerry Siegel, Joe Shuster Lois Lane, Superman

Lex Luthor

Sources

Title Type Date Names Characters Series
Action Comics #23 Comic 1940-02-22

Batman

Sources

Title Type Date Names Characters Series
The Case of the Chemical Syndicate Comic 1939-05 Bill Finger, Bob Kane Batman, James Gordon

The Crimson Avenger

Sources

Title Type Date Names Characters Series
Detective Comics #20 Comic 1938-10

Hugo Strange

Sources

Title Type Date Names Characters Series
Detective Comics #36 Comic 1940-02

Dick Grayson

Sources

Title Type Date Names Characters Series
Detective Comics #38 Comic 1940-04

Robin

Sources

Title Type Date Names Characters Series
Detective Comics #38 Comic 1940-04

Jason Todd

Sources

Title Type Date Names Characters Series
Did Robin Die Tonight? Comic 1987-06 Adrienne Roy, Chris Warner, Max Allan Collins, Mike Decarlo

Ultra-Humanite

Sources

Title Type Date Names Characters Series
Action Comics #13 Comic 1939-05-02 Jerry Siegel, Joe Shuster

Zatara

Sources

Title Type Date Names Characters Series
Action Comics #1 Comic 1938-04-18

Flash

Sources

Title Type Date Names Characters Series
Flash Comics #1 Comic 1940-01

Hawkman

Sources

Title Type Date Names Characters Series
Flash Comics #1 Comic 1940-01

Joker

Sources

Title Type Date Names Characters Series
Batman #1 Comic 1940-06 Bill Finger, Bob Kane

Catwoman

Sources

Title Type Date Names Characters Series
Batman #1 Comic 1940-06 Bill Finger, Bob Kane

Lwaxana Troi

Sources

Title Type Date Names Characters Series
Haven Episode 1987-11-30 Lan O'Kun, Richard Compton, Tracy Tormé Deanna Troi, Lwaxana Troi