character - Canus

character - Clyde

character - Sergei (voice)

character - Special Agent Finley Sterling

character - Julius Caesar

character - Chris Decker

character - Kamandi (voice)

character - Ian Gallagher

character - Jeremiah Valeska/The Joker (archive footage)

character - Ferris Bueller

character - Himself

character - Connor Kent / Superboy (voice)

character - Self

character - Connor Kent / Superboy (voice)

character - Luke Hunter

character - Ross

character - Aaron

character - James Walker

character - Tom Fairfax

character - Jerome Valeska

character - Jeremiah Valeska

character - Joker

character - Asher

character - Adam McCormick

character - Jeff

character - Mason Ashford

character - Carlos

character - Corey Doyle

character - Corey

character - Ian Gallagher

character - Self

character - Jack

character - Cody Grice

character - Jonathan McKenna

character - Larry Parker

character - Bob Andrews

character - Young Boy 1

character - Dexter

character - Elliot

character - Tyler Carson

character - Bob Andrews

character - Traffic Cop #1

character - Kevin O'Doyle

character - (archive footage)

character - Jeffrey Charles

character - Timmy

character - Palmer Noid

character - Nick Peyton

character - Winthrop Paroo

character - Danny Cooper

character - Alex

character - student (uncredited)

character - Chad

character - Eddie Sandow

character - Eddie Sandow