Peter Sellers: Peter Sellers. Actor: Being There. Often credited as the greatest comedian of all time, Peter Sellers was born Richard Henry Sellers to a well-off acting family in 1925 in Southsea, a suburb of Portsmouth. He was the son of Agnes Doreen "Peg" (Marks) and William "Bill" Sellers. His parents worked in an acting company run by his grandmother. His father was Protestant and his mother was Jewish (of both Ashkenazi...