John Glenn, Peter Vaughan, Jayalalithaa Jayaram, Greg Lake

Matthew Bannister on

John Glenn, the astronaut who was the first American to orbit the earth and later the oldest man ever to be sent into space.

The actor Peter Vaughan, best known for his roles in Porridge, Our Friends In the North and latterly Game of Thrones.

Jayalalithaa Jayaram, the autocratic chief minister of the Indian state of Tamil Nadu who was imprisoned for corruption, but re-elected afterwards.

And Greg Lake - the guitarist and singer who was part of the supergroup Emerson, Lake and Palmer and recorded a classic Christmas single.

Producer: Dianne McGregor.