According to Celebrity Net Worth, Whitman is said to be about $1million (£905,000).
Other sources have suggested it could be anywhere between $1million and $5million (£3.8million) as of 2019.
Good Girls has proven to be a huge success since season three was released on Netflix, so her worth is likely to be on the increase from here.
The star is also known for her role as Amber Holt in the NBC show Parenthood, and she was nominated for a Critics’ Choice Television Award for Best Supporting Actress in a Drama Series in 2015.
Whitman has won three Young Artist Awards in 1996, 1998 and 2001 for her roles in One Fine Day, Hope Floats and An American Rhapsody.
source: express.co.uk