|Appearance(s):||Grand Theft Auto: Vice City Stories|
|Full name:||Mary-Beth Williams|
|Date of birth:||1984|
|Place of birth:||Vice City|
|Home:||Little Havana, Vice City|
|Family:||Louise Cassidy-Williams (mother)|
Marty Jay Williams (father)
Mary-Jo Cassidy (aunt)
Phil Cassidy (uncle)
Mr. Cassidy (grandfather)
- Mary-Beth Williams is the youngest character to be featured in the Grand Theft Auto series, as well as being one of the only two minors in the franchise, the other one being Jill Von Crastenburg from GTA IV.
- She'd be 17 years old by the end of the 3D Universe timeline, which would be in 2001.
- She is the first and only seen-on-screen infant in the series.