Speakers in 2008 have included the Conservative politician Ann Widdecombe, and in 2007 featured Armando Iannucci, who discussed why the period between Ash Wednesday and Easter Sunday is longer than forty days.
The final Lent Talk in 2008 was delivered on 19 March, by the Bishop of Durham, Tom Wright.
His talk drew upon the Bible book Lamentations of Jeremiah, emphasising the negative moments in life and times when we need to sit and reflect.
The theme of his talk, delivered during Holy Week, was to reflect on the period between the crucifixion and resurrection of Jesus Christ.
Early in this edition, Pattison referred to the Anglican liturgy, in which it is said that God knows our hearts, and watches our inner movement.
The final edition of the Lent Talks in 2009 was broadcast on 8 April, and presented by the Jewish philosopher and theologian Melissa Raphael.
Alister McGrath presented the Lent Talks on 24 March 2010, on the relationship between religion and science - he mentioned Karl Popper, Peter Medawar and Sir Isaac Newton.
That year's talks opened with "Man of Sorrows" by artist and songwriter Ben Okafor, who remembered Jesus' agony in Gethsemane and his own trauma as a child caught up in the Biafran war.
As someone who witnessed the sexual abuse of her teenage friends in the 1990s, Edwards wondered whether she - and they - might have spoken out more readily if they had not been taught that silence in the face of suffering is a virtue.
The Archbishop argued that the point of being human is that God's promise that we will get through difficult times does not take away from the agony of the moment.