Original: Whedon , Serenity : Director 's Commentary , track 7 '' Mr. Universe '' Jewel Staite as Kaywinnit Lee '' Kaylee '' Frye : the ship 's mechanic , has an intuitive , almost symbiotic , relationship with machines and is , consequently , something of a mechanical wizard .
Simplified: Whedon , Serenity : Director 's Commentary , track 7 '' Mr. Universe '' Jewel Staite as Kaywinnit Lee Frye .