This chat takes place around the 6th season of Shameless US and the age of the characters is around:

Frank Gallagher: 54 (Father) Fiona Gallagher: 24 Lip Gallagher: 21 (He is studying at Chicago Polytechnic College) Mickey Milkovich: 20 (Ian’s Boyfriend) Ian Gallagher: 19 Debbie Gallagher: 15 (Just had a baby at 14 “Francis (Franny) Gallagher) Carl Gallagher: 14 (Just got out of juvie) Ian Gallagher: 4 Veronica (V): 30s (Fiona's best friend) Kev: 30s (Veronica's boyfriend)