Previous Secretaries of the Ontario Cabinet
A record of the names and terms of all of the Secretaries of the Cabinet in Ontario from 1948 to 2021.
The Secretary of the Cabinet is the Premier’s Deputy Minister, the Head of the Ontario Public Service and the Clerk of the Executive Council. Ontario’s first Secretary of the Cabinet, Lorne McDonald, was appointed in 1948. The current Secretary of the Cabinet, Michelle E. DiEmanuele, was appointed in 2021.
Previous Secretaries of the Ontario Cabinet

Lorne McDonald
October 1948 – November 1953

William McIntyre
December 1953 – February 1969

John K. Reynolds
March 1969 – April 1971

Carl E. Brannan
May 1971 – November 1973

James D. Fleck
January 1974 – December 1975

Dr. Edward E. Stewart
January 1976 – July 1985

Robert C. Carman
July 1985 – September 1989

Peter Barnes
September 1989 – September 1992

David Agnew
September 1992 – June 1995

Rita Burak
June 1995 – June 2000

Andromache Karakatsanis
June 2000 – November 2002

Tony Dean
November 2002 – January 2008

Shelly Jamieson
January 2008 – December 2011

Peter Wallace
December 2011 – July 2014

Steve Orsini
July 2014 – January 2019

Steven Davidson
January 2019 – June 2021