A Different World is a TV series that aired on NBC from September 24, 1987 to July 9, 1993 for six seasons. It is a spinoff of The Cosby Show.

Cast & Character Origins

Characters	From	Date	Episode
Denise Huxtable	The Cosby Show	September 20, 1984	S01E01: “Pilot”
Charmaine Brown	The Cosby Show	October 11, 1990	S07E04: “Period of Adjustment”

Guest Characters

Characters	From	Date	Episode	Crossover Type
Cliff Huxtable, Rudy Huxtable	The Cosby Show	October 1, 1987	S01E01: “Pilot”	A
Cliff Huxtable, Rudy Huxtable	The Cosby Show	November 5, 1987	S01E06: “Rudy and the “Snow Queen”	A
Russell Huxtable	The Cosby Show	November 18, 1987	S01E07: “Sometimes You Get the Bear, Sometimes the Bear Gets You”	A
Cliff Huxtable	The Cosby Show	December 3, 1987	S01E08: “If Chosen, I May Not Run”	A
Clair Huxtable	The Cosby Show	March 24, 1988	S01E19: “Clair's Last Stand”	A
Rudy Huxtable, Theo Huxtable	The Cosby Show	July 7, 1988	S01E22: “My Dinner With Theo”	A
Clair Huxtable, Theo Huxtable, Vanessa Huxtable	The Cosby Show	February 2, 1989	S02E13: “Risky Business”	A
Clair Huxtable, Denise Huxtable*, Martin Kendall, Olivia Kendall	The Cosby Show	November 2, 1989	S03E05: “Forever Hold Your Peace”	A
Clair Huxtable	The Cosby Show	February 8, 1990	S03E15: “Success, Lies and Videotape”	A
Charmaine Brown, Lance Rodman	The Cosby Show	February 27, 1992	S05E19: “Conflict of Interest”	A

(Note: Denise Huxtable left A Different World after season 1 and returned to the cast of The Cosby Show so her appearance in “Forever Hold Your Peace” is a semi-crossover.)