Nana Gallagher Had an Affair is the tenth episode of the first season of Shameless.
Monica's return to the family wreaks havoc on the Gallagher clan -- leaving the children determined to find out if Frank is their real father. Fiona moves in with Steve next door.
Special Guest Star
- Mo Gaffney - Christine Dowling
- Carlease Burke - Roberta
- Jerry Lambert - Randy Kulovitz
- Caitlin Kimball - Technician
- Michael Krawic - Elaine's Dad
- Guy Massey - Jasper
- Kendra McCulty - Elaine
- Michael Patrick McGill -Tommy
- Alexis Rutter - Patty
- Saachiko - Korean Lady
- Jeorge Watson - Mr. Tubbard
- Youlanda Davis - Goofy Attorney
- Joe DeBartolo - Neighbor/Grocery Shopper