With that seared into your brain, here’s your guide to The Gallaghers’ 10 Most “Shameless” Moments.
Fiona Hooks Up With Her Boyfriend Mike’s Addict Brother Robbie
In Season 4, Episode 3 titled “Like Father, Like Daughter,” Fiona fails to resist the temptation to cheat on her then boyfriend (and boss) Mike Pratt with his bad boy addict brother Robbie. This was probably Fiona’s darkest moment of the series to date. Her spiral of sex, drugs and carelessness leads to a breakup, Liam’s accidental cocaine overdose, as well as Fiona’s brief incarceration.