Mustapa Abdul Karim (or sometimes Mustapha) (18 April 1941 - 13 September 2011) was a businessman and owner of JM Bariani House, he used to be a Miner in Mersing, Johor where he had dengue fever and had to be rushed to the hospital. After marrying with Jamilah Abu Bakar, they both stay in Muar together. They have 3 children, Zulkarnain Mustapa (also called "Onn"), Abdul Hafiz (Known as "Seth") and Zul At-Fi (Called as "At"). Mustapa and Jamilah then sell Nasi Lemak before opening JM Bariani House on 1983 after moving to Subang Jaya. He had at least have 7 grandchildren. They don't always return to Muar, Johor since Jamilah's father, Abu Bakar, passed away in 2009. He became a pensioner at the age of 69, two years before his death.