New members Sasha Alexander (Helene, Lip's professor) and Bojana Novakovic (Bianca, Frank's doctor) are both of Serbian descent and speak fluent Serbian.
Sasha Alexander previously starred on Rizzoli & Isles (2010). Cameron Monaghan guest starred in Season 2, Episode 5 of that show.
Bojana Novakovic (Bianca Samson, Frank's doctor) and Michael B. Silver (Lorenzo) also appeared together on Instinct (2018) as Det. Lizzie Needham and Sgt. Kanter Harris respectively.