WMG / The Cosby Show

The Cosby Show

Sondra Huxtable is a Key.
That's why she doesn't exist in the first few episodes. The monks hadn't created her yet.

  • She was a replacement for Denice the original/flawed Key. That would explain why Cliff only thought he had 4 children in the first episode. That is why they both look different from the other 3 Cosby kids.