Final answer:
Neve Campbell is the only actress among those listed who was not born in the USA; she was born in Canada.
Step-by-step explanation:
Among the actresses listed, Neve Campbell is the one who was not born in the USA. She was born in Guelph, Ontario, Canada. The other actresses mentioned are all American: Jada Pinkett Smith was born in Baltimore, Maryland, USA; Sarah Michelle Gellar was born in Long Island, New York, USA; and Courtney Cox was born in Birmingham, Alabama, USA.