Samuel Tei Abal is a Papua New Guinean politician. Abal, who previously served as Foreign Minister from August 2007 to December 2010, became the Deputy Prime Minister of the country in a cabinet reshuffle by Michael Somare on 7 December 2010. He further became acting Prime Minister of Papua New Guinea on 13 December 2010, when Prime Minister Somare stepped down from office to face a tribunal regarding allegations of financial mismanagement. His tenure as acting Prime Minister ended on 2 August 2011, when Peter O'Neill won a parliamentary vote to be appointed as Prime Minister. Since October 2021, he is the Ambassador Extraordinary and Plenipotentiary of Papua New Guinea to Japan.

Sir Michael Thomas Somare was a Papua New Guinean politician. Widely called the "father of the nation", he was the first Prime Minister after independence. At the time of his death, Somare was also the longest-serving prime minister, having been in office for 17 years over three separate terms: from 1975 to 1980; from 1982 to 1985; and from 2002 to 2011. His political career spanned from 1968 until his retirement in 2017. Besides serving as PM, he was minister of foreign affairs, leader of the opposition and governor of East Sepik Province.