In Shameless, Perry Mattfeld joins the cast as Mel right when the Gallagher universe is already teetering on disaster (as usual).

What Makes Shameless Unique? At its core, Shameless is a story about survival. The series is centered around Frank Gallagher, the alcoholic and unreliable patriarch played masterfully by William H.

However, when it came to one of Fiona's most trying and emotional moments in "Shameless," the death of her grandmother in Season 2 of the series, Rossum shared that this storyline may have hit a ...