Wroldsen was born in
Langesund to Valter Johan Wroldsen and Dagny Agathe Kristensen. He was elected representative to the
Storting from the constituency of
Vestfold for the period 1981–1985 for the
Labour Party, and reelected for the period 1985–1989, and again for the period 1989–1993. Ernst Wroldsen died on 16 August 2023, at the age of 78. ==References==