During the 1960s and 1970s he wrote several long running and popular plays for comedians James Young and Jimmy Logan.
Driven by this success Cree submitted a sketch to comedian James Young for inclusion in his summer variety show.
Following the withdrawal of Sam Thompson's play Over The Bridge from Ulster Group Theatre, Young was invited to bring his unique comedy talents to the venue.
Young asked Cree to adapt Glenn Melvyn's The Love Match for an Ulster audience.
The plot of Cree's adaption followed Alec Galbraith, a fanatical supporter of Linfield Football Club, whose son Davy joins rival team Glentoran.
Cree's play ran for 42 weeks and its success allowed the Group Theatre to clear its debt.
[6] Cree was offered £80,000 for his play Cupid Wore Skirts and during the height of his success he spent three weeks in Hollywood touring the Studios and meeting the likes of Frank Sinatra, Jerry Lewis, Dean Martin and Liza Minnelli.
Cree's later plays premiered at the Arts Theatre, Belfast run by actor/manager Hubert R. "Hibbie" Wilmot.
Today Cree's plays are popular amongst Amateur Drama companies in Northern Ireland due to their simple humour, recognisable characters and because of the appeal to audiences of all ages.