Papa Wolf: In one episode a sneaky advertiser had videotaped her daughter in a beach scene, telling her and the girls that they were taping a suntan lotion commercial but instead it is for a 1-900 sex hotline; Frank is outraged and, during his visit with the producer, hangs him from a tall-story window and threatens to drop him unless he confesses and pulls the commercial off the air.
Break the Haughty: Often happens to her. In one episode Frank's dimwitted nephew Cody gets a higher SAT score than Dana, which caused her no small amount of distress. In another one her professor gives her a D and calls her paper "supercilious crap".
Deadpan Snarker: Her defining trait. She snarks all the time, with J.T being her favorite "victim".
Hello, Nurse!: Apparently every boy in her school drools over Karen.
Informed Attractiveness: People on the show talked about Karen as if she was the hottest girl in the world. While very pretty, she wasn't significantly more attractive than Dana and Al.
Lovable Alpha Bitch: Karen is the most beautiful and popular girl in her school, and she's generally bratty, narcissistic, ditzy, and extremely shallow, but she means well and is the sweetest of the three girls (compared to Al and Dana).
Extraverted Nerd: In the early seasons he was a brainy, weird, socially awkward uber-nerd. He eventually gets a Character Development and matures to be a normal teenager with friends and even a girlfriend, while still being a high academic achiever.
Girliness Upgrade: Originally a tomboy but she becomes more feminine as time goes by. Although Al very much may have continued her interest in sports later, this is very much forgotten onscreen by midway through the series as Christine Lakin entered puberty and the producers wanted to take advantage of her physical attractiveness.
Jerk with a Heart of Gold: She's hot-tempered, rude, and rebellious, but she does have a moral center. Although she continues to be self-assured in later episodes, the negative aspects were toned down somewhat in later seasons
One of the Boys: Very much so in the early episodes, due to being the only daughter of a single father with two brothers & her interest in sports (as well as the apparent lack of girls-only teams in Port Washington).
Only Sane Woman: More evident when she gets out of her aggressive tomboy phase, in later seasons. Especially in her trio with Dana and Karen, she's by far the most normal and levelheaded. It's also lampshaded in season 6 that she's the only Lambert sibling who is not an idiot.
Demoted to Extra: He wasn't given much to do during the first 5 seasons (he only gets A Day in the Limelight in about two episodes), but at least he was usually included in the scenes involving the entire family. As of season 6 he was almost out of the picture, before being eliminated completely in season 7.
Papa Wolf: On one episode Dana goes to one of the toughest bars in town against her stepfather's orders and gets in trouble. Whereupon Frank and Cody, come to rescue her jointly beat up every ruffian there in a Bar Brawl and take her home.
Again, in the episode where he and J.T. take Karen to a party at their frat house. Although Cody had earlier scoffed at Dana's suspicion that the frat brothers would try to take advantage of Karen, he is not pleased when Karen declines an offer of sex and is immediately taunted by all the boys for being a "virgin." The physically larger Cody confronts Karen's tormentor and indignantly demands: "What's wrong with being a virgin? I'm a virgin!"