I've never been asked to give anyone a breakdown of the character, but I imagine that if I were asked, they'd be interesting in more than just the age and physical requirements.
Personally, I'd include things that make the character who they are - quirks and eccentricities. If you're familiar with the character's background, you could include things that lead the character to the person they are within the film. I don't think they're looking for a strict breakdown of name, age, gender, physical looks and the like. I could be wrong, though.
