Sandi is a very athletic and tough girl. Her friends are Ian and Tyrone. She often plays basketball with Tyrone and he always ends up weak on the ground. She believes that she is very tough and hates being mocked. Unlike her friend Tyrone, she is often very cynical of Ian's schemes.
She is very similar to George Kirrin from Enid Blyton's Famous Five book series as well as George's future daughter Jyoti Misra from the TV series Famous 5: On The Case.