Ekubo is a native of Arochukwu, Abia State. He attended the Federal Government College Daura, Katsina State. He studied Law at the University of Calabar and later got a diploma in Mass Communication from Calabar Polytechnic.
Ekubo's film debut was a minor role in Lancelot Oduwa Imasuen's Sinners in the House (2005); his first major role was in Ladies Men several years later.