He created great interest by his play Op Hoop van Zegen (1900), an indictment of the exploitation of sea fishermen in the Netherlands at the turn of the century, represented at the Théâtre Antoine in Paris, and in English by the Stage Society as The Good Hope.
Blokker had minor roles in the television shows Zeg 'ns Aaa, SamSam, Pompy de Robodoll, Seth & Fiona, and Filmpje!, and in the 1990 television production of the Herman Heijermans play Eva Bonheur.
Herman Heijermans, Op Hoop van Seën: 'n Spel van die See in Vier Bedrywe (1979)
Herman Melville | Woody Herman | Herman's Hermits | Herman Wouk | Herman Hollerith | Edward S. Herman | Herman Daly | Herman Van Rompuy | Herman Dune | Herman Brood | Herman Willem Daendels | Herman Gorter | Herman Finck | Herman Boerhaave | Herman | Herman Wirth | Herman Rarebell | Herman Kahn | Herman Brusselmans | Pee-Wee Herman | Herman Wallace | Herman van Veen | Herman Talmadge | Herman Moore | Herman L. Taylor, Jr. | Herman Kogan | Herman Joseph Justin | Herman I, Duke of Swabia | Herman Heijermans | Herman Haupt |
The Good Hope, a play written by Herman Heijermans in 1901, was translated in a new version for the Royal National Theatre, which relocated the action to the Yorkshire fishing community of Whitby in 1900, by Lee Hall, writer of the award-winning Billy Elliot and Spoonface Steinberg.