'Shameless': Emmy Rossum Talks Grammy Gallagher's Gun And Monica Gallagher's Return

02/07/2012 04:40 pm ET | Updated Feb 07, 2012

Have you ever wondered how Frank Gallagher (William H. Macy) became TV's most vile, deadbeat dad? Well, you know what they say, the apple doesn't fall far from the tree. Coming up on Showtime's "Shameless," Grammy Gallagher (Louise Fletcher) is paying her son Frank a visit, straight out of jail, and she's bringing a whole lot of crazy with her.

"Grammy is going to end up mano a mano at Sheila's (Joan Cusack), on Sheila's couch, so that will be interesting," star Emmy Rossum told HuffPost TV. "When we meet Grammy, we finally understand why Frank is the way he is, especially Fiona. Grammy is Frank to the Nth degree. She's even worse. She's scheming, and when she comes back, the first thing she does when she gets out of jail, on medical furlough, is open up a meth lab in our basement, and she has Carl (Ethan Cutkosky) running it. Fiona is obviously not pleased about that."

But could Grammy's meth lab lead to a violent encounter for the Gallaghers? "[Grammy] pulls a gun on Sheila," said Rossum. "It's pretty awesome. We love guns this year. Sadly, no guns for FiFi."

Lip (Jeremy Allen White) will also have his fair share of Grammy to deal with, especially when she insults his manhood.

"[Frank is] forced to bathe his mother, and Lip comes in to use the toilet," White told HuffPost TV in January, describing his favorite scene with Grammy. "It's strange because the family is so close in that way, but then Grammy makes fun of Lip. She's like, 'Wow, that's such a tiny pecker. Do you have sex with girls with that thing?' And then Lip comes back and says something funny. Then, Frank comes in and says, 'Yeah, it's so tiny!' It's just this weird, vicious cycle of family cruelty that doesn't stop."

However, Grammy isn't the only estranged Gallagher to return for Season 2. Monica Gallagher (Chloe Webb), Frank's ex-wife and the mother of the boisterous Gallagher brood, will also also return later in the season. It looks like she's cleaned up her act and she's hoping for forgiveness from Fiona.

"Monica, the mother, comes back, and she's seemingly really healthy all of the sudden," revealed Rossum. "She seems to be back on her meds, and Fiona is going to give her another shot, so we'll see how that goes."

Considering that the last time Fiona and Monica had a conversation it turned into a full-blown emotional family meltdown, "Shameless" fans are in for some serious Gallagher family drama.

"Shameless" airs on Sundays at 9 p.m. EST on Showtime. Check out the video below to get more scoop on Grammy Gallagher's return.

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