Stuart Little/Alvin and the Chipmunks

Cast

 * Mr. Little as Alvin
 * Stuart Little as Simon (they both start with "S")
 * George Little as Theodore
 * Adult Simba (from The Lion King) as Dave
 * Scar (from The Lion King) as Ian
 * Mrs. Little as Brittany
 * Margalo as Jeanette
 * Lilo (from Lilo and Stitch) as Eleanor
 * Adult Nala (from The Lion King) as Claire
 * Zira (from The Lion King II: Simba's Pride) as Zoe