John Markus

John Markus

Writer

Google / IMDb / Rotten Tomatoes / People

Statistics (Totals):

US Box Office: $0

Global Box Office: $0

Writing Credits: 6

JBscale as Writer:
12
Very Bad
Writer
Cosby Show, The: Season 6

1989

Cosby Show, The: Season 5

1988

Cosby Show, The: Season 4

1987

Cosby Show, The: Season 3

1986

Cosby Show, The: Season 2

1985

Cosby Show, The: Season 170

1984