 Main cast members Stephen Amell, David Ramsey, Rick Gonzalez, Juliana Harkavy, Katherine McNamara, Ben Lewis, Joseph David-Jones, LaMonica Garrett and Katie Cassidy appear as Oliver Queen / Green Arrow, John Diggle, Rene Ramirez and Dinah Drake, Mia Smoak, William Clayton, Connor Hawke, Mar Novu / Monitor and Earth-2's Laurel Lance / Black Canary.Despite the "special appearance" bill, Cassidy is still considered part of the main cast.The guest cast includes Echo Kellum as Curtis Holt, Venus Terzo as Elisa Schwartz, and Jamie Andrew Cutler as Grant Wilson / Deathstroke.