Jillian Russell is an intellectually challenged, and bulimic girl who Brian dated throughout Family Guy's fifth season and into the beginning of the sixth season. She has a few friends, who are about the same level of intelligence as she is. She still thinks Hitler exists and that lemons are killed to make lemonade. It was first revealed that Jillian has Bulimia in "Whistle While Your Wife Works" when she says she threw up a lot in high school and no longer has periods. The issue is addressed again in "Prick Up Your Ears" when Brian and Stewie heard her being sick in the bathroom, and Brian told Stewie that Jillian had an eating disorder. Afterwards, he went on to say 'All that purging just makes her body look fantastic'. In the episode "We Love You, Conrad", Jillian gets married to a man named Derek Wilcox.
- FG505 "Whistle While Your Wife Works"
- FG506 "Prick Up Your Ears"
- FG507 "Chick Cancer"
- FG508 "Barely Legal"
- FG515 "Boys Do Cry"
- FG602 "Movin' Out (Brian's Song)"
- FG709 "The Juice Is Loose"
- FG714 "We Love You, Conrad"