Marge Browne is the posthumous antagonist in the 2020 animated film, Dogfield 3.
Personality
Marge is a greedy and failure-intolerant individual. She is somewhat manipulative and abusive, especially to her evil son, Erick.
She also has a lack of business insight since she never takes into account of reserving resources (the dogs) to create a long and stable business instead her greed blinds her to the fact that she willing to pressure Erick to kill the dogs (including Ben) and make them into fur coats until nothing left to make the business function.
Role
During a flashback recalled by Ben, Marge helped cut kill the puppies and turn them into coats and is the mother of Erick and the daughter of the Gangster Leader. She is snobby, money-crazy, somewhat manipulative, selfish, and cruel to her youngest son.
She constantly battling Erick, and was said he wouldn't amount to anything all his life. However, this wasn't the case when Erick created and mass-produced the successful coat, which has become very popular.
Even when Erick happily taunted his mother of his success as a businessman, she simply brushes this off by claiming that she was only motivating him into creating his business.
She is the one who convinced Erick's continue kill the dogs and cats (including Ben's parents) and turn them into coats. Mostly its clear that she wants Erick to make the business more successful to keep her well kept. Once the factory is run out of business, Marge died of a heart attack suddenly, and collapsed to the ground, leaves Erick an orphan. Before dying, Marge says that she is disappointed by her son.
It was revealed that the real cause of Marge's death was decades of terrible lifestyle choices of eating too much candy, which caused her heart attack.