Originally, Kyle's personality was extremely similar to his best friend Stan's - he had firm morals and generally was the "good boy" of the group, often being the one to deliver the "I learned something today" speech at the end of the episodes. After the abandoned plan to kill Kyle off in Season Five (that honor went, predictably, to Kenny) his personality was changed - most notably, his temper shortened considerably. Like his mother, Kyle does speeches to say what he thinks is right. He can sometimes be a little egotistical about his intelligence, yet at times can also be a little immature for his intelligence, such as fingerpainting. Your current "ex" in this AU.

Ike appears to idolize his older brother. He has often tried to follow him to school as shown in "Cartman Gets an Anal Probe" and "Cancelled". He often copies the words Kyle has said, even obscenities, as shown in South Park: Bigger, Longer & Uncut. Conversely, one of the few examples of Ike getting angry at Kyle occurred when Kyle interrupted Ike's news program and changed the channel. Kyle has superficial malice towards Ike, but in several episodes, most notably "Ike's Wee Wee," it is shown that Kyle does indeed love his brother.

Gerald seems to care about the environment and current events. He is typically portrayed to be kind and friendly, though he can be stubborn, sarcastic and impolite at times. Although he is seen as a primarily moral man, he is seen to get carried away with matters of money, which shows him to be corruptible, tempting him to do things he would normally find amoral and wrong, much to his shame.

Sheila is very protective about her family and has often led huge campaigns against beliefs and other such examples which she believes are unsafe, often going too far in her efforts and steamrolling her son in the process. She was the cause of the America-Canada War and was the leader behind "Mothers Against Canada" (M.A.C.). She also seems to be somewhat nosy, poking into things that are other people's business. For instance, when she found out that Gerald Broflovski and Stuart McCormick used to be friends in high school she arranged a fishing date between the two (which had bad results.) In retrospect, either the relationship between Gerald and Stuart OR the fact that the Broflovskis are from New Jersey may be non-canon, unless Stuart McCormick lived in New Jersey with Gerald prior, or Gerald and Stuart went to high school together in South Park or some other location,