Katherine Heigl (Stephanie Plum), Jason O'Mara (Joe Morelli), Sherri Shepherd (Lula), Debbie Reynolds (Grandma Mazur), Daniel Sunjata (Ricardo Carlos), Patrick Fischler (Vincent), John Leguizamo (Jimmy Alpha), Louis Mustillo (Mr. Plum), Debra Monk (Mrs. Plum), Annie Parisse (Mary Lou), Fisher Stevens (Morty Beyers), Leonardo Nam (John Cho), Nate Mooney (Eddie Gazarra), Danny Mastrogiorgio (Lenny), Michelle Bathe (Jackie), Ana Reeder (Connie), Gavin Keith Umeh (Benito Ramirez), Adam Paul (Bernie Kuntz)