Here's 26 of them I could find:
Executive pay Czar: Kenneth Feinberg
Regulatory Czar: Cass Sunstein
Health-care reform Czar: Nancy-Ann DeParle
Efficiency Czar: Jeffrey Zients
Southwest border Czar: Alan Bersin
Energy Czar: Carol Browner
Urban affairs Czar: Adolfo Carrion
Economics Czar: Paul Volcker AND/OR Lawrence Summers
Government performance Czar: Unfilled
Drug Czar: Gil Kerlikowske
Auto Industry czar: Steve Rattner (resigned this week)
Bank bailout Czar: Herb Allison
Iran Czar: Dennis Ross
Mideast Czar: George Mitchell
Afghanistan/Pakistan: Richard Holbrooke
Cyber security Czar: Melissa Hathaway
Distressed auto communities Czar: Ed Montgomery
Climate change Czar: Todd Stern
Guantanamo Closure Czar: Daniel Fried
Science Czar: John Holdren
Terrorsim Czar: John O. Brennan
Nonproflieration Czar: Gary Samore
Stimulus accountability Czar: Earl Devaney
Faith-based Czar: Joshua Dubois
Info Tech Czar: Vivek Kundra
Sudan Czar: J. Scott Gration
BTTT