September 12, 2003: Dr. Ed Lazowska, Bill & Melinda Gates Chair in Computer Science & Engineering, University of Washington
October 10, 2003: Dr. Richard Klausner, Global Health Executive Director, Bill & Melinda Gates Foundation
November 14, 2003: Dr. Lee Hartwell, President and Director, Fred Hutchinson Cancer Research Center
December 12, 2003: Dr. George Michaels, Director of Bioinformatics for the Biomolecular Systems Initiative, Pacific Northwest National Laboratory
January 9, 2004: Dr. Bruce Watson, Director of Quality Control, Columbia Winery
February 13, 2004: Dr. James M. Krueger, College of Veterinarian Medicine, Washington State University
March 12, 2004: Bill Ruckelshaus, Principal, Madrona Investment Group; Chairman, Salmon Recovery Board; First and Fifth Administrator of the US Environmental Protection Agency (1970 and 1985)
April 8, 2004: Dr. William A. Hagopian, Principal Scientist, Pacific Northwest Research Institute.
May 14, 2004: Dr. Phillip Thurtle, Assistant Professor, Department of Sociology and Anthropology, Carleton University; Co-Editor, In Vivo: The Cultural Mediations of Biomedical Science, University of Washington Press Book Series
June 11, 2004: Dr. Eric Horvitz, Senior Researcher and Group Manager, Adaptive Systems & Interaction Group, Microsoft Research