To celebrate 25 years of Superstar, Shannon caught up with ... Were there any guest hosts who requested a Mary Catherine Gallagher sketch? I’m not sure if Aerosmith requested one or just ...

“Saturday Night Live” superstar Molly Shannon joins TODAY ... She talks about the rise of her Mary Catherine Gallagher character, doing that sketch with Whitney Houston, and more.

One of Molly Shannon’s most popular “SNL” characters, hyperactive Catholic school girl Mary Catherine Gallagher, stems from Shannon’s childhood of loss. When she was four years old ...

but she did tape a video—one that was crashed by longtime "Saturday Night Live" character Mary Katherine Gallagher, played by Molly Shannon.

but she did tape a video—one that was crashed by longtime "Saturday Night Live" character Mary Katherine Gallagher, played by Molly Shannon.