Jacinta Mary Ann Collins is a former Australian politician who served as a Senator for Victoria from 1995 to 2005 and again from 2008 to 2019. She represented the Australian Labor Party (ALP) and was the party's deputy leader in the Senate from June to October 2013. Collins was a parliamentary secretary in the Gillard government and Minister for Mental Health and Ageing in the second Rudd government. She retired from politics prior to the 2019 federal election and accepted an appointment as national executive director of the National Catholic Education Commission on 18 February 2019.

Penelope Ying-Yen Wong is an Australian politician who is serving as the current minister for Foreign Affairs and leader of the Government in the Senate in the Albanese government since 2022. A member of the Australian Labor Party (ALP), she has been a senator for South Australia since 2002. Wong previously served as minister for Climate Change and minister for Finance and Deregulation during the governments of Prime Ministers Kevin Rudd and Julia Gillard from 2007 until 2013.