Carl Anthony Payne II credited as playing...
Walter 'Cockroach' Bradley
- Theo Huxtable: Wait, pâte! All right!
- Dr. Heathcliff 'Cliff' Huxtable: Ah! Don't you touch it! Keep... This is for the guest.
- Walter 'Cockroach' Bradley: [goes for the pâte] All right!
- Dr. Heathcliff 'Cliff' Huxtable: No, no. You are... You are not a guest. Never have been.
- Dr. Dan Morgan: Theo, is that a mustache on your top lip?
- Theo Huxtable: [chuckles] Yes, it is.
- Dr. Dan Morgan: Is it yours?
- Theo Huxtable: Yes, it is.
- Dr. Dan Morgan: Does your daddy know about it?
- Theo Huxtable: Yes, he does.
- Walter 'Cockroach' Bradley: My dad knows about mine, too, only he noticed it a lot sooner than Dr. Huxtable noticed Theo's.
- Theo Huxtable: Ha ha, you wish. Dad, when was the first time you noticed my mustache?
- Dr. Heathcliff 'Cliff' Huxtable: Uh, when... when Dr. Morgan said you had one.