Jebara was born on 1 April 1935, in Cornet Chehwan. He attended Sisters of the Sacred Hearts School and performed in plays written by one of the villagers and directed by the mayor. As a child, his first appearance was in a play named The Fall of Granada. Later on, his family moved from Cornet Chehwan to Beirut, where his dad worked. His father “began working at the public department of real estate as a doorman, and left there still a doorman, while many others progressed in life working there. At La Sagesse School in Ashrafieh, people were astonished to see Jebara and his brother greet everyone they met, as is the custom in the village. Jebara did not get his baccalaureate certificate. His father fell ill and it was decided that he would join his mother’s relatives in Brazil in 1954. He only lasted 20 days as an expatriate, unable to endure emigration. Later on, he would play leading roles under the direction of Moultaka and Berge Vazilian. His favorite role is still Raskolnikov in a theatrical adaptation of Fyodor Dostoevsky's Crime and Punishment directed by Moultaka in 1963. At that time Jebara started teaching theater at the Lebanese University where he stayed until 1990, when he moved to the Universite Saint-Esprit de Kaslik, in addition to writing his weekly column in the Lebanese newspaper An-Nahar’s cultural supplement and hosting his daily radio program Hello, Grandma on the Voice of Lebanon. After he tried acting, he felt a desire to write and direct plays and to adapt international themes in his own style, He finished his first play Let Desdemona Die in 1970. It was followed by a prolific career in producing plays, from Zarathustra Became a Dog (1977) to The Male Bee (1982), The Dream Maker (1985), Who Picked the Autumn Flower? (1992) and A Picnic at Demarcation Lines (1977), among others. In addition to writing, Jebara directed plays, including The Conspiracy Continues by the Rahbani Brothers (1980) and Summer 840 by Mansour Rahbani (1988). Between 1986 and 1990 he managed Tele Liban that was strenuous years as he said and he suffered paralysis in one half of his body before he left. He continues to suffer from the aftereffects till his deathday on 14 April 2015