On the Grandfathered episode “Sexy Guardian Angel,” Jimmy (John Stamos) gives his 25-year-old son Gerald (Josh Peck) tips on “how to pick up chicks, not women.” The self-proclaimed Sexy Guardian Angel Jimmy is excited to play wingman for Gerald on a night on the town but when he sees Gerald connecting with party girl Frankie, he tries to pull Gerald back. Jimmy suspects Frankie is trying to hook up with Gerald for all the wrong reasons.
Frankie is portrayed by Lyndsy Fonseca. She’s best known for her roles on Agent Carter (Angie Martinelli), How I Met Your Mother (Daughter), Nikita (Alex), Desperate Housewives (Dylan Mayfair), Big Love (Donna), The Young and the Restless (Colleen Carlton), and Boston Public (Jenn Cardell). Grandfathered airs Tuesdays at 8pm on Fox.