Meet the Team

Knowledge, Experience and PASSION  

Rev Professor Alister McGrath

Alister McGrath is the Andreos Idreos Professor of Science and Religion at the University of Oxford, as well as the President of the Oxford Centre for Christian Apologetics (OCCA). His previous posts include being Professor of Theology and Education at King’s College, London, and Professor of Historical Theology at Oxford University. 

McGrath gained first class honours from Oxford University in Chemistry (1975) and first class honours in Theology...

Find out more about Alister McGrath

Dr Ravi Zacharias

Ravi Zacharias is Founder and President of Ravi Zacharias International Ministries (RZIM), which celebrated its thirtieth anniversary in 2014. Dr. Zacharias has spoken all over the world for 43 years in scores of universities, notably Harvard, Dartmouth, Johns Hopkins, and Cambridge. He has addressed writers of the peace accord in South Africa and military officers at the Lenin Military Academy and the Center for Geopolitical Strategy in Moscow. At the invitation of the President of Nigeria,...

Find out more about Ravi Zacharias

Professor John Lennox

John Lennox is Professor of Mathematics at Oxford University, a Fellow in Mathematics and the Philosophy of Science at Green Templeton College, Oxford and an Honorary Fellow at Wycliffe Hall, Oxford. He studied at Cambridge from which he holds the degrees of MA, MMath and PhD and was subsequently Reader in Pure Mathematics at the University of Wales, where he was awarded a DSc. He also holds an MA in Bioethics.

Professor Lennox has spoken at many universities, conferences...

Find out more about John Lennox

Dr Os Guinness

Os Guinness is an author and social critic. Great-great-great grandson of Arthur Guinness, the Dublin brewer, he was born in China in World War Two where his parents were medical missionaries. A witness to the climax of the Chinese revolution in 1949, he was expelled with many other foreigners in 1951 and returned to Europe where he was educated in England. He completed his undergraduate degree at the University of London and his D.Phil in the social sciences from Oriel College,...

Find out more about Os Guinness

Michael Ramsden

Michael Ramsden is the International Director for RZIM and has been part of the organisation since its foundation in Europe in 1997. He is joint Director of the Oxford Centre for Christian Apologetics.

Michael was brought up in the Middle East and later moved to England where he worked for the Lord Chancellor’s department investing funds. While doing research in Law and Economics at Sheffield University, he taught Moral Philosophy and lectured for the International...

Find out more about Michael Ramsden

Amy Orr-Ewing

Amy Orr-Ewing is European Director for RZIM Zacharias Trust, and Director of Programmes for the Oxford Centre for Christian Apologetics (OCCA)

Amy is a passionate exponent of a rational Christian response to many of the pressing cultural issues of the day, bringing her formidable theological knowledge to bear on a wide variety of subjects. She gained a first class degree in Theology at Christ Church, Oxford University, before receiving a Master’s in Theology from...

Find out more about Amy Orr-Ewing

Rev Frog Orr-Ewing

Frog Orr-Ewing is the Chaplain at the OCCA and Associate Tutor at Wycliffe Hall. He became the youngest incumbent in the country as vicar of All Saints Church in Peckham after a curacy at St Aldates Church in Oxford. Despite Peckham’s many challenges, over seven years the congregation witnessed marked growth and breakthroughs in community engagement and mission, and now numbers several hundred with youth and childrens activities to about 1000 children in the local area.


Find out more about Frog Orr-Ewing

Dr Vince Vitale

Vince is Team Director and Senior Tutor at the Oxford Centre for Christian Apologetics, Tutor in Philosophy and Mission at Wycliffe Hall, a member of the Faculty of Theology and Religion at the University of Oxford, and a speaker for the Zacharias Trust.

Before coming to Oxford, Vince taught in the Philosophy and Religion Departments of his alma mater, Princeton University, where as an undergraduate he took an unexpected journey that led him to put his trust in God. While teaching...

Find out more about Vince Vitale

Tom Price

Tom Price is an Academic Tutor at the Oxford Centre for Christian Apologetics and an apologist for RZIM. He studied Philosophy at university and later completed an MA in Christian Apologetics.

In recent years Tom has spoken at universities and churches in Hong Kong, Europe, South Africa, USA and other places across the world. In the UK, he has provided teaching for major conferences such as Keswick, Spring Harvest and BMS Catalyst. He lectures for HTB...

Find out more about Tom Price

Dr Sharon Dirckx

Sharon Dirckx is an Academic Tutor at the Oxford Centre for Christian Apologetics (OCCA). Originally from a scientific background, she has a Ph.D. in brain imaging from the University of Cambridge and has held research positions at the University of Oxford, UK and the Medical College of Wisconsin, USA. Sharon is an OCCA Alumna, and graduated from OCCA in 2005 during its founding year. She is invited to speak and lecture in a variety of contexts across the UK, including the 2014 Veritas...

Find out more about Sharon Dirckx

Rev Dr Keith Small

Originally from a ministry background, over the last 20 years Keith has been speaking to churches, university students, community lecture events, and at various training conferences in Europe and the USA concerning Muslim-Christian relations. Keith has a PhD in Islamics and New Testament Studies for his work comparing features of ancient Qur’an and New Testament manuscripts.

Keith is a Manuscript Consultant to the Bodleian Library at Oxford University, and is also an...

Find out more about Keith Small

Jo Vitale

Jo Vitale received a first class degree in Theology at the University of Oxford and was twice recipient of the University's Gibbs Prize for her examination results. Jo then completed a University of Oxford Masters in Biblical Interpretation (M.St) before being awarded an Arts and Humanities Research Council Scholarship for doctoral studies.

She is currently using the award for doctoral studies at the University of Oxford on the topic of "Women and Beauty in the Old...

Find out more about Jo Vitale

Our training

From one day to two years, we have a range of training opportunities available for you!Tell me more

Meet the Team

Knowledge, experience, and passion! Learn directly from the cutting edge with world class apologists and theologians.Find out more

Follow OCCA on Twitter

Keep up to date on Twitter by following @theocca. You can even choose to follow one of our speakers. Find their Twitter handles here

Follow us:

RZIM - Ravi Zacharias International Ministries