Molly C. Quinn, who plays Ashley, played Nathan Fillion's daughter Alexis on his previous hit show "Castle." Toks Olagundoye, who plays Nolan's professor, played Hayley Shipton, Castle's PI partner.
Astro's diner is a popular filming location in Silverlake. Station 19 among many other shows and films use the diner
Slam by Onyx plays during the scene where Oscar shows up in plain clothes.