First Appearance: Joker: Last Laugh #6 (Jan. 2002): "You Only Laugh Twice"
Number of Appearances: 1
Enemy of: The Joker
Ally: Vincent Del Arrazio
Ally: Mike Akins
Note: apparently last-minute replacement for Harvey Bullock
Johnson was first seen and named in panel 6 on page 11 in Joker: Last Laugh #6 (Jan. 2002). (This is on page 167 in the Joker: Last Laugh trade paperback.) Johnson is seen further in panels 1, 2 and 4 on page 12, and in panel 1 on page 26 (page 182 in the trade paperback).