"Susan is just great. I know I'm biased, but she's a great actress"

In this quote, Tim Robbins is revealing his affection for Susan, an actress. He recognizes that his point of view might be prejudiced, but he still thinks that she is a terrific actress. This suggests that Tim Robbins has a close connection with Susan, and that he has actually seen her work firsthand. He is confident in his point of view of her talent, as well as agrees to attest her capabilities. This quote is a testament to the strong bond in between Tim Robbins and also Susan, and also his admiration for her job. It also talks with the prestige in which Tim Robbins holds Susan, and his idea that she is a terrific actress.