From Wikipedia's Full House entry:
Jesse Cochran/Katsopolis (played by John Stamos) - An up-and-coming musician. His catchphrase is "Have mercy!"
Daniel "Danny" Tanner (played by Bob Saget) - He is the co-host of the morning talk show Wake Up, San Francisco. His catchphrase was "Cut..It..Out!", accompanied by hand gestures.
Donna Jo "D.J." Margaret Tanner (played by Candace Cameron) - Oldest daughter in the Tanner household, who is a typical teenager, and deals with everyday issues. She has two occasional catchphrases, "Whoa, baby!" and "Oh, Mylanta!"
Stephanie Judith Tanner (played by Jodie Sweetin) - Middle daughter of the Tanner household. She is known to have an energetic and talkative personality. She also has three catchphrases: "How rude!"; "Well, pin a rose on your nose!"; and "Hot Dog!"
Michelle Elizabeth Tanner (played by Mary-Kate and Ashley Olsen) - Youngest of the Tanner daughters. She has a strong bond with Jesse, who refers to her with the nicknames "Shortie," "Munchkin," or "Rugrat." Michelle has her own catchphrases: "You got it, dude!"; "You're in big trouble, Mister!"; and "No way, José!"
The above prose poem found while boning up on the cultural significance of a recent Paul Slocum artwork.