Cassandra has brown eyes and long, black hair. She has pale skin and wears dark lipstick. She wears a green dress and long earrings.
Cassandra is a generous and helpful person, and has not let fame and fortune go to her head. She has done many philanthrophic activities outside of her acting career, and is training to be a pilot.
Cassandra and Dave are grade school friends and they grew up together in Vermont Square in South L.A. Even after Cassandra became a famous actress and Dave a detective, they stayed friends.
Sam stays at Cassandra's place during the events of the book and is a big fan of her work, not just as an actress but also as a philanthropist. Cassandra comes to like and respect her, and they become friends.
While her opinion of Hayley Rose isn't initially negative, Cassandra is well aware that Hayley's talent at singing doesn't translate all that well to acting. She nonetheless remains classy and professional while filming a movie with her, although her subsequent capture by Hayley's murderous associate tanks this.
It's not clear whether Cassandra is actually friends with Ryan Summers, but she gets on with him well enough both on and off the set, likely due to their shared fondness for Dave and tendency to work together as co-stars.
Cassandra seemed to enjoy filming the adaptation of James's play and is happy to meet Your Character. She does not seem to have particularly strong feelings about all the changes being made to James' work, though she admits that there are rather a lot.