Miriam Dalli and Clyde Caruana have been co-opted to Parliament.
Their appointment was approved by the Labour Parliamentary Group today.
They will be replacing Joseph Muscat and Etienne Grech.
Miriam Dalli is a member of the European Parliament and Vice-President of S&D and her appointment will now mean a casual election to replace her in Brussels.
Clyde Caruana, a former Mayor of Zabbar, is Head of Secretariat within the Office of the Prime Minister