While Defra prepares for rising global temperatures, Environment Secretary Liz Truss is more immediately focused on trying to warm more tech graduates to the food and farming industries – and engineer a thaw in relations between the Tories and the north

The Department of Health’s director general for social care, local government and care partnerships tells Winnie Agbonlahor about a career spent working across boundaries

Jonathan Powell, the former diplomat, chief of staff to Tony Blair and Northern Irish peacebroker, is currently trying to negotiate a ceasefire in Libya. Matt Ross asks him about the FCO, sofa government, and the ups and downs of liberal interventionalism

Chris Wormald

Permanent Secretary of the Department for Education

Rob Varley

Chief Executive of the Met Office

Jon Thompson

Permanent Secretary of the Ministry of Defence

Mark Sedwill

Permanent Secretary of the Home Office​

Alison Saunders

Director of Public Prosecutions

Philip Rutnam

Permanent Secretary of the Department for Transport

Mark Russell

Chief Executive of the Shareholder Executive

Jane Platt

Chief Executive of National Savings & Investments

Sue Owen

Permanent Secretary of the Department for Culture, Media and Sport

Ruth Owen

Head of the Operational Delivery Profession

Una O'Brien

Permanent Secretary of the Department of Health

Tim Moss

Chief Executive of Companies House

Malcolm McKibbin

Head of the Northern Ireland Civil Service

Mark Lowcock

Permanent Secretary of the Department for International Development  

Stephen Lovegrove

Permanent Secretary of the Department for Energy and Climate Change

Ed Lester

Chief Executive of the Land Registry

Chris Last

Head of Civil Service Human Resources

Sir Bob Kerslake

Permanent Secretary of the Department for Communities and Local Government

Jonathan Jones

Treasury Solicitor and HM Procurator General

Sir Derek Jones

Permanent Secretary of the Welsh Government

Bronwyn Hill

Permanent Secretary of the Department for Environment, Food & Rural Affairs