As an actor , he is best known for his role as Coach Graham Lubbock on the series Growing Pains .
As an actor , he is best starring in the spin - off series Just the Ten of Us ( ABC 1988 - 1990 ) .
As an actor , he is best known for his role as Coach Graham Lubbock on the series Growing Pains and starring in the spin - off series Just the Ten of Us ( ABC 1988 - 1990 ) .