Si and Am

They are villains from Lady and the Tramp and Lady and The Tramp II: Scamp's Adventure.

Si and Am played Flotsam and Jetsam in The Little Mer-Maddision Marples-Macintosh
She is a eel

Si and Am played Kaa in The United State Book (2016) (disneystyle172 Style)
They were an female snake

Portrayals

 * In Ballerina and the Tin Soldier, they will be played by Zira and Vitani
 * In Mittens and the Bolt, they will be played by Ursula and Morgana
 * In Kira and the Jen, they will be played by Jellylorum and Etcetera