A countess and Archer's love interest, she was raised in Europe and returns to New York amid scandal due to her separation from her husband.

Archer's fiancée and later wife, she embodies New York society's conventional values with a seemingly innocent demeanor.

The matriarch of the Mingott family, she is a powerful and independent woman known for her outspoken nature and support for Ellen.

May's mother, she upholds the ideals and customs of Old New York society and is seen as a model for her daughter.

May's ailing and passive father, who retreats from social life, exemplifying the traditional and restrained lifestyle of his class.

Newland's mother and sister, they maintain a conservative household that reflects the values and traditionalism of Old New York society.

A wealthy and socially ambitious banker known for his scandalous behavior and involvement with Ellen Olenska, which affects her reputation.

The wife of Julius Beaufort, from a distinguished family, she faces societal scrutiny due to her husband's indiscretions.

Ellen's unconventional aunt, known for her eccentric lifestyle and past influence over Ellen's upbringing.

A French tutor and former secretary who helps Ellen escape her troubled marriage, showing concern for her welfare without scandalizing her.