Dennis James Richardson is an Australian retired public servant and diplomat who served as the Secretary of the Department of Defence from 2012 to 2017 and Secretary of the Department of Foreign Affai
Official portrait, 2005
Peter Costello
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Peter Howard Costello is an Australian former politician and barrister who served as the treasurer of Australia from 1996 to 2007 and the deputy leader of the Liberal Party from 1994 to 2007. He was t
Costello's friend, former Liberal Party President Michael Kroger in 2015
Gordon Brown (left) and Peter Costello (right) at the International Monetary Fund 2002 annual meeting
Costello in 2020