 Hollis has been Chairman of the Catholic Media Trust and also Chairman of the Bishops' Committee for Europe.He served as a member of the Pontifical Council for Social Communications in the Vatican, as Chairman of the Bishops' Conference Department of Mission and Unity, Representative for the Bishops' Conference of the Churches Together in Britain and Ireland and a Member of IARCCUM (International Anglican Roman Catholic Committee for Unity and Mission).He is said to enjoy cricket and golf and, in the family tradition, to take a keen interest in current affairs.