A supporting character is a character in a narrative that is not the focus of the primary storyline, but appears or is mentioned in the story enough to be more than just a minor character or a cameo appearance.
... And for a while we had been looking for - how does that will manifest itself in a woman? What does it look like, how is it different? " Who is Diana Nyad? Usually in films, anyone other than the main character is referred to as a Supporting Character - and the person playing them a supporting actor...