Thomas Ebozele Okosun, Esq., was born on 20th September, 1959 in Ekpoma, Edo State. He attended various schools amongst which are Auchi Polytechnic; University of Benin; Ambrose Alli University and the Nigerian Law School. He is a holder of HND, MPA, LL.B and B.L.

Thomas Okosun held several positions in the course of his career, among which is the Edo State House of Assembly where he served for two terms and was elected Speaker of the House. He was also the State Chairman of the Action Congress of Nigeria (ACN) now All Progressives Congress (APC). He was the Pro Chancellor of Tayo Akpata University of Education, Benin City.

Also, he is a member of the National Governing Council of AUDA, NEPAD, APRM representing South South where he was appointed as a member of the Competition and Consumer Protection Tribunal to represent the South South region of Nigeria.