Charles Ofosu Marfo is a Professor in the Department of Language and Communication Sciences at the Kwame Nkrumah University of Science and Technology (KNUST), Kumasi. He is the immediate past Provost of the College of Humanities and Social Sciences. He served as President of the KNUST branch of the University Teachers' Association of Ghana (UTAG) and National President of UTAG, from 2018 to 2020. He is also a former President of the Linguistics Association of Ghana (LAG).

Prof. Marfo has been a visiting Scholar/Professor at the University of Hong Kong (Centre for African Studies, Department of Linguistics) and the University of Potsdam (Department of English and American Studies), Brandenburg, Germany. He is also an external examiner for several universities. He serves on several boards, including the Board of Directors of the House of Faith Credit Union (HoFCU), Osei Kyeretwie Secondary High School, and Royal Image Broadcasting Network (which includes Royal TV), all as Chairman.

Prof. Marfo attended the University of Ghana, Legon-Accra, where he read Linguistics and Philosophy for his B.A. degree (Linguistics major). He further pursued and received M.Phil. in Theoretical Linguistics (with a concentration on Phonology and Morphosyntax) at the University of Tromsø in Norway. He also obtained Ph.D. in Linguistics (specializing in Theoretical Linguistics, particularly Phonology and Morphosyntax and their interfaces) from the University of Hong Kong.

Prof. Marfo enjoys teaching and researching various aspects of language (linguistics), literature, and communication. He has published widely in these disciplines. He is also a friend of the media, as he enjoys commenting on socio-political and other national issues, particularly on radio.