Shaun the Sheep/The PENGUINS of Madagascar (2014)

Cast

 * Shaun as Skipper (they're both starts with "S")
 * Shirley as Kowalski (their voices both low-pitched)
 * Bitzer as Rico
 * Mower Mouth as Private
 * Pidsley as Dr. Octavius Brine
 * The Farmer as Classified
 * The Farmer's Girlfriend as Eva
 * Pig #2 as Short Fuse
 * Timmy as Corporal