Vichy and Soisse are two privates in the dog army who report to General Napoleon. These are smaller acting roles that require good movers and solid singing voices appropriate for small group singing. If you have a small cast, consider double casting them as Alley Cats in the opening number and for "Ev'rybody Wants to Be a Cat."
(The CATS march offstage then come back on, but now they are followed by LAFAYETTE, NAPOLEON, VICHY and SSOISE, whom they do not notice.)
Say, Napoleon, if we're looking for that butler fella, how come we're marching behind a bunch of cats?
Well, how should I know that? You're the one who's up in front.
Well, I say we should attack them.
Yes, attack them.
I like attackin'.
Wait a minute! I'm the leader! I'm the one who says when we attack.
(pause)
Let's attack.
(The DOGS bark and chase the CATS, who run off in different directions.)