Conference Speakers

We have a wide variety of great speakers for this year's OAC Evangelists Conference.

John Gibson

John embarked on a career in psychology and theology when, as a young man, he had an encounter with God that forever changed his life, taking him from militant atheism to life as a born-again believer and committed follower of the Lord Jesus Christ. Throughout his life he has sought ways of using psychology to get people saved.

John is the originator of Life Theme Psychology, a Christian understanding of psychology, built on a comprehensive model of personhood, Life Theme Analysis, a way of facilitating personal growth and change towards high-level wellbeing, and the Life Strategy Indicator (LSI), a professionally validated psychometric measure that identifies the life-management strategies a person uses.  John 10:10 is the cornerstone of his work.

John lives in Aberdeenshire with his wife Louise, three cats, two parrots, and a dog. He heads a London psychology clinic working with individual and corporate clients throughout the world. He is also an ordained minister with the First Church of Jerusalem, which is a movement committed to revival through the rediscovery of first-century Christianity.

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A headshot of John Gibson

Ricky Don Wilhelm

Ricky Don is currently serving in the role of Pastor for preaching and vision at Penarth Evangelical Church which was planted in November 2023.  He is originally from Oklahoma but has been serving as a missionary and church planter for nearly 20 years in Udmurtia, Moscow, and Wales.  He has a PhD in Evangelism from Southwestern Baptist Theological Seminary and has devoted most of his ministry to evangelism, church planting, and training pastors for church planting and revitalization.

Ricky Don and his wife Brandy met when they were 9 years old and have been married for 24 years.  They have two children whose adventurous childhood is reflected by their love for sub-zero temperatures, Welsh cakes, and country music.

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A headshot of Ricky Don Wilhelm

Peter Gladwin

Peter Gladwin is a full time evangelist, published author, and former Probation Service Officer whose life story is a powerful example of resilience and recovery.  Having suffered a number of severe injuries including being seriously burnt in a house fire, he shares how God has helped him overcome immense physical and emotional challenges in the rebuilding of his life.

Today, he inspires audiences around the world with his message of perseverance, positive Godly mindset, and the belief that adversity can lead to personal growth and new purpose when a life is surrendered to God.

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A headshot of Peter Gladwin

Owen Cottom

Owen is married to Charlotte and together they have the joy of raising four young sons.  They help lead Grace Church Cardiff, a church they planted in the south of Wales’ capital in 2018.

Owen is part of the leadership team of Cant i Gymru (www.100.cymru), has a Masters in Biblical Theology and is an author of Revive Us Again and Reviving Prayer (two books released in March 2025).

Owen regularly leads the devotions at the OAC Evangelists Conference and is a great favourite.

 

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A headshot of Owen Cottom

Pete Hodge

Pete originates from Plymouth in the South West but he has lived in Wales since 1977.  He is married to Angie, they have three children and six grandchildren.

Pete was converted in October 1971, soon after both he and Angie believed God was calling them into full time ministry – and in 1974 they were off to Bible college for two years.  After Bible college Pete was in pastoral ministry for 5 years.  However, over this time there was a growing call into evangelism  which led to Pete to leave the pastoral ministry and he has been an evangelist for nearly 50 years with OAC GB.

Pete is an enthusiastic Mountain Biker and loves to get out in the countryside when he can.

Pete still has a passion for the Gospel and seeing it communicated effectively.

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A headshot of Pete Hodge

Steve Harris

Steve has been the National Director of OAC Ministries GB since January 2023 and the Chairman of the OAC Euro Zone since March 2026

Having trained as a Barrister and then worked as a IT Manager Steve felt God calling him to be an Evangelist during a Souled Out camp at Coleg y Bala in 2007.

Steve joined OAC in 2008.  He has been sharing the Gospel in schools, churches and out on the streets ever since.  He has a particular passion to train others and so regularly leads training sessions to help people to be more confident in sharing the Gospel.

Steve is married to Becky who is also an Evangelist with OAC.  They have two young children called Elisha and Esther.

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Steve Harris with Elisha and Essie

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