Si & Am
These sinister Siamese cats from Lady and the Tramp are best remembered for their sneaky ways and “We Are Siamese If You Please” duet. Originally named Nip and Tuck in a 1940 script, their characters were later changed to Si and Am. Combined, their names are Siam, the former Kingdom of Thailand where the cats’ originated. Today, they are major members of Disney’s Villain franchise.