Season six of Arrow will feature more Wild Dog and Black Canary. There's been a lot of new coming out of the Arrow production office lately including Katie Cassidy returning to the series next season as Black Siren and the return of Manu Bennett and Katrina Law for the season five finale. But today we've learned that Rick Gonzalez and Juliana Harkavy are being uped to series regulars next season. Gonzalez plays Rene Ramirez / Wild Dog, a street level vigilante that Oliver recruited for this seasons new team. Harkavy plays Dinah Drake, a cop who was in Central City during the particle accelerator explosion and ended up with the ability to do a sonic scream. She is being groomed to be the next Black Canary.
With the return of Cassidy as Black Siren and Harkavy as Black Canary, things are likely to get very loud next season.