Trudy is the beautiful, intelligent, and kind veterinarian mother of Penny, BeBe and CeCe. She comes from a relatively wealthy and very brainy family, with her father, Vincent Parker also being a doctor, and her sister, Diana being a famous actress. She married Oscar after he won the 1977 Spelling Bee Championship because she felt that he was worth it. She was also a debutante like her daughter, Penny.
Trudy is often caring for her children as well. Since Trudy makes more money than Oscar, she asserts dominance over him at times and often goes into a rage when he does not do what she wants. Although she always catches Oscar with other women, she never seems to even consider divorcing him. She does have a mean spirited side, as she openly talks and jokes about cheating on Oscar, and flirts with other men in front of him without caring at all. However, she would never even think of doing it. Also, when she is diagnosing Mariah Carey's monkey, she hides the fact that her last name is Proud (calling herself "Dr. Trudy"), since the monkey got sick from eating Proud Snax and she doesn't want to get shunned for being married to Oscar.
Trudy gives good advice and is often the voice of reason for Penny and Oscar. However, she does not appreciate Oscar acting like a jerk or Penny misbehaving. She can also be a bit possessive of her kids when she and Oscar argue and usually refers to the kids as "hers" and sometimes threatens Oscar when he corrects her.
Her best friend is Sunset Boulevardez, because they share a few things in common: They are both strict mothers and housewives with teenage daughters, they do not like it when their husbands act dumb and idiotic and they do not like their husbands flirting with other women even though they do the same thing with attractive men.
Oscar Proud - Trudy's husband. She is aware of Oscar's constant flirting with other women and is understandably hates it. Despite this, she does tolerate him still and its clear the two still love each other. They are both caring parents and they do work together to raise their kids.
Penny Proud - Trudy's oldest daughter. Out of the two parents, Trudy does a much better job at reaching out to Penny, understanding her, and giving her the advice that she needs.
Suga Mama - Trudy's mother-in-law. While there have been a few moments where Suga Mama drives Trudy crazy, she has a much better relationship with her than her husband (Suga Mama's own son) does.
Bobby Proud - Trudy's brother-in-law. They don't have many scenes together but they seem to have a good relationship. There will be a few moments where Bobby understandably annoys Trudy (particularly in the episode "Tiger Whisperer") but other than that, they still treat each other like family. They also seem to be very accepting of each other as family members as they often introduce and refer to each other as their "brother/sister-in-law" without any hesitation.
BeBe & CeCe Proud - Trudy's baby twins. She is clearly affectionate and loving towards them the way a mother should be. She is often see with them.
Trudy's one of only five characters to have appeared in every single episode of the series, the other four are:
Oscar, Trudy's husband.
Penny and CeCe, daughters.
Suga Mama, Oscar's mother, and Trudy's mother-in-law.
Dijonay, Penny's best friend.
Trudy and Sunset do have a habit of flirting with attractive men, similar to how their husbands do it with other women. The difference is they don't do it nearly as often and they usually do it to teach them a lesson.
Trudy gets mad at Oscar for flirting with other woman, unaware it's partly her fault for being so bossy that it irritated him into doing it.