"Eleven, including me. Five boys, six girls, four parents, two drivers, and a partridge in a pear tree."
―Heather to Kate
Heather McCallister is Kevin's oldest cousin and a member of the McCallister clan.
The eldest daughter of Georgette and Rob, Heather has three younger siblings: Steffan and twin girls, and attends Northwestern University. During a summer, her father Rob was given a promotion, with a job transfer to Paris as part of it. While her family moved from New York to the French capital, she was the only one left in the United States as she had to complete her college studies. She tags along with the other McCallisters for the trip to Paris.
She first appears at the beginning of the film asking her cousin Tracy if she ordered the pizza to which Tracy tells her that Buzz did. She also tells Harry that her parents are in Paris after asking if they are there. Heather is later seen eating pizza in the kitchen and gets mad at Kevin, along with the others, after he causes an incident with Buzz. The next day as the family is preparing to leave Kate tells Heather to count heads to make sure everyone is in the vans which she does and accidentally mistakes a neighborhood kid named Mitch Murphy for Kevin and they leave without him. In Paris, as Kate is trying to make a phone call to the Chicago Police, Heather looks worried about Kevin being accidentally left behind at home (and also guilty as she was the one who miscounted), and tries to make a phone call to someone in Chicago who can go check on Kevin to no avail. Heather later goes to her parents' apartment with her Uncle Frank, Aunt Leslie, Uncle Peter, and her cousins while her Aunt Kate tries to get a flight to Chicago. Heather is last seen in her parents' apartment helping her dad and her brother decorate the Christmas Tree.
- When taking the head count, Heather counts herself twice and does not count Linnie.
- Of the fifteen McCallisters in the first movie, Heather is the only one who does not return in Home Alone 2.
- The script states that she is 19 years old.
- "Buzz, don't be a moron."
|The McCallister family|
|Peter and Kate's family||Kevin • Peter • Kate • Buzz • Megan • Linnie • Jeff|
|Frank and Leslie's family||Frank • Leslie • Tracy • Rod • Sondra • Brooke • Fuller|
|Rob and Georgette's family||Rob • Georgette • Heather • Twins • Steffan|
|Others||Penelope • Anna|
|Home Alone 4||Kevin (Home Alone 4) • Peter (Home Alone 4) • Kate (Home Alone 4) • Buzz (Home Alone 4) • Megan (Home Alone 4)|