Katy Cooper
Adventures in Babysitting Publicity Photos 4
Biographical information
Full Name
Katy Cooper
Katy (by everyone)
2009 (age 7)
Resides In
Highland Park, Los Angeles
Cooper Household
Physical Description
Hair Color
Eye Color
Personal Information
Barry Cooper (father)
Donna Cooper (mother)
Emily Cooper (sister)
Pink, Diamonds, Give Makeovers, Glitter, Mom's Earrings Bobby
Production Information
First Appearance
Portrayed By
What? Do you expect me to wear pearls?
—Katy to Jenny

Katy Cooper is one of the main characters in Adventures in Babysitting. She is a sweet, pretty 7 year old girl and is in love with fashion!

She is portrayed by Mallory James Mahoney.



Very into pink, fashion, and makeovers, Katy is the ultimate mini-Barbie. She loves anything fancy, and adores her mother's diamond earrings. She is also very kind, caring, and sympathetic.


Her hair color is blonde, unlike her sister and Mom's hair color, which is black.



Emily Cooper

(Older Sister)

Emily is Katy's older sister. They have a good relationship, but there is a little bit of drama as Katy can tattletale on her most of the time. Some of the things that Katy would tattletale would be when Emily was about to shave her head. But overall, they have a good relationship.

Donna Cooper


Donna is Katy's mother. Evidently she also thinks she can give her mother fashion tips. Donna's best friend is Helen (Trey's mother).

Barry Cooper


Barry is Katy and Emily's father.


Jenny Parker


Jenny is Katy's babysitter. Jenny and Katy seem to get along well, and form a friendship throughout the movie. When Jenny was distressed, Katy comforted her. When Jenny needed a makeover, Katy voluntarily did it, much to her liking.

Lola Perez


Lola is Katy's friend. During her trip to the city, Katy recommended a manicure. Throughout the movie, they formed a friendship. When Lola was bailed from jail by Officer James, Katy seemed happy and relieved that Lola was okay. She also gave Lola a makeover to disguise her as an apparent heiress so she can "borrow" the $100 in order to bail the SUV out from the Towing.

AJ Anderson

This information is currently unknown

Bobby Anderson

This information is currently unknown

Trey Anderson

This information is currently unknown


Finally, my people.
It's Friday Night, what do you except me to wear pearls?
—Katy to Jenny
You know, a professional manager can do wonders to your hands?
—Katy to Lola


  • Katy is a Cooper.
  • Katy is the youngest child in the Cooper family.
  • She loves her babysitter Jenny.
  • She's adorable.
  • She loves jewelry.
  • She is 7 years old.


The image gallery for Katy Cooper may be viewed here.

Main Characters
Jenny ParkerLola PerezEmily CooperKaty CooperTrey AndersonBobby AndersonAJ AndersonZac ChaseHelen AndersonDonna CooperTinyThe ScalperOfficer JamesBarry CooperHal Anderson
Recurring Characters
Leon VasquezDouglasDominique CassidyOfficer FitzJailer Swift-SirenBelleDead ManFemale OfficerPolice OfficerCop #1Cop #2DJ ChillBig PinkPlanetarium GuardHead ChefPastry ChefParty HostessCoat Check GirlStaff GirlStaff BoyMCCarlTinoTrentSamanthaRosarioImaniConcert Guard #1DancerArt StudentGala Event AttendeePedestrian