Special Guest Stars David Ramsey as John Diggle Guest Stars Nathan Owens as Ocean Jesse Hutch as Agent Russel Tavaroff Peter Outerbridge as Roman Sionis Ava Sleeth as Young Beth Gracyn Shinyei as Young Kate Wallis Day as Circe Sionis Shivaani Ghai as Safiyah Sohail Leah Gibson as Tatiana / The Whisper Co Starring Allison Riley as Dana Dewitt Gardiner Millar as GCPD Captain Arpad Balogh as Man