Willa Holland as Thea Queen aka Speedy: Thea Queen is Oliver's half-sister and former superhero Speedy. Katherine McNamara is primarily known for her role as Clary Fray in the Freeform series Shadowhunters, an adaptation of The Mortal Instruments. Katherine McNamara as Mia Smoak aka Blackstar: Mia Smoak is Oliver Queen and Felicity Smoak's daughter who becomes the hero Blackstar in the future. Rick Gonzalez has starred in a number of films over the years, such as Coach Carter and briefly in War of the Worlds.
In the future, he becomes Mayor of the Glades. Rick Gonzalez as Rene Ramirez aka Wild Dog: Rene Ramirez is one of Team Arrow's core members and acts as the vigilante Wild Dog. Juliana Harkavy briefly starred on The Walking Dead but is known for her role as Rebecca in Dolphin Tale and its sequel - aside from Arrow, that is. Juliana Harkavy as Dinah Drake aka Black Canary: Dinah Drake is another one of Team Arrow's Black Canary who also doubles as Star City's police captain. Katie Cassidy Rogers is known for her many CW roles on shows such as Supernatural and Gossip Girl but her career amplified with her part in the Arrowverse. She now operates as Black Canary alongside Team Arrow. Katie Cassidy Rodgers as Laurel Lance aka Black Canary: This version of Laurel Lance comes from Earth-2 and was originally a villain before she turned to the light.