Leatherman, 33, was arrested outside Cusack's home in March.
In a rambling statement Friday morning, Leatherman claimed she was the victim of sex crimes and thought Cusack could help her.
Cusack wasn't present in court, but a prosecutor read a statement from him that stated he had never met Leatherman but hoped she received proper psychiatric help.
Cusack's screen credits include "Being John Malkovich," "High Fidelity" and "Grace Is Gone."