Sydney Barrow is a very smart young girl who befriends Lily Tucker-Pritchett in "The Cold".

Mitchell is delighted that Lily has found someone special like her, someone who assumes an intellectual challenge, not an ordinary child. Or at least it seems at first, until he discovers that Sydney is much better than his daughter. After doing many activities and seeing how Sydney beats Lily in everything, Mitchell finally calls her a know-it-all, which makes Sydney cry. Mitchell tries to apologize telling her to forget what he said, but Sydney says that she can't forget it because she has a photographic memory. Lily is upset with Mitchell, and in the middle of the discussion, he accidentally spills a drink on Sydney's picture and also gets his watch caught in her hair by mistake, which makes her to cry more. When Sydney's mother arrives, she gets mad at Mitchell for calling Sydney a know-it-all and leaves. Mitchell then turns into Lily and asks her if Sydney is really a year younger than her.

Community content is available under CC-BY-SA unless otherwise noted.