This list from the National Assn. for College Admission Counseling listserve starts with a name that's more notorious than celebrated:
The Unabomber, Harvard
Also, it doesn't mention Bill Gates, who dropped out of Harvard. I think he later got an honorary degree.
Then, in alphabetical order:
Joseph Aboud, U. Mass
Tim Allen, Western Michigan University
Kofi Annan, Macalester
George Bodenheimer, Denison
Wolf Blitzer, SUNY Buffalo
Jerry Brown, Santa Clara U
Tom Brokaw, University of South Dakota
Drew Carey, Kent State
Bill Cosby, U. Mass
Walter Cronkite, U of Texas
Carson Cressley (Queer Eye for the Straight Guy), Gettysburg College
Betty Crocker, Oregon State
Marc Cuban, Indiana University
Kirk Douglas, St. Lawrence
Barbara Ehrenreich (author of Nickel and Dimed), Reed
Michael Eisner, Denison
Jennifer Ferenstein (President of the Sierra Club), Reed
Will Ferrell, USC
Janet Fitch (author of White Oleander), Reed
James Gandofini, Rutgers
Jennifer Garner, Denison
Rudolph Giuliani, Manhattan College
John Glenn - Astronaut, Muskingum Colleg e
Matthew Goldman (Blue Man Group), Clark
Billy Graham, Wheaton
John Grisham, Mississippi State
Herbie Hancock, Grinnell
David Horowitz, Bradley
Chad Hurley (founder of YouTube), Indiana U of Pennsylvania
Steve Jobs (never received a college degree), Reed
Magic Johnson, Michigan State
Ashley Judd, U of Kentucky
Martin Luther King, Morehouse
Stephen King, U. of Maine
Phil Knight (founder of Nike), U. of Oregon
Don Knotts, West Virginia U
Ted Koppel, Syracuse
Ashton Kutcher, U Iowa
Padma Lakshmi (TV host and chef), Clark
Frank Langella, Syracuse
Gary Larsen (Far Side), U Washington
Matt Lauer, Ohio U
Ang Lee, University of Illinois Champaigne/Urbana
Spike Lee, Indiana U
Jay Leno, Emerson
Sandy Lerner – (co founder of Cisco Systems), Chico State
David Letterman, Ball State U
Rush Limbaugh, Southern Missouri State
Jeffery Lurie (owner of Philadelphia Eagles), Clark
Matthew McConaughey, U Texas
Tom Menino (mayor of Boston), Chamberlayne Junior College
Jenny Ming (president of Old Navy), San Jose State
Walter Mondale, Macalester
Meredith Monk, Sarah Lawrence
Roger Mudd, Washington and Lee
Anne Mulcahy (CEO Xerox), Marymount
Bill Murray, Regis
Edward R. Murrow, Washington State U
Greg Neumann (lead analyst for NASA’s Mars mapping project), Reed
Paul Newman, Kenyon
Richard Nixon, Whittier
Peter Norton (of Norton Disk Doctor), Reed
Barack Obama, Occidental
Larry Page (Co-Founder of Google), University of Michigan
Hugh Panero (CEO of XM Satellite Radio), Clark
Ron Paul (2008 Republican Candidate), Gettysburg College
Linus Pauling (two Nobels), Oregon State
Brad Pitt, University of Missouri
Colin Powell (65th US Secretary of State), bachelor's degree in geology, City
College of New York ("C" average).
Bobby Rahal, Denison
Dan Rather, U Texas/Austin
Ronald Reagan, Eureka College
Condoleezza Rice, U of Denver
Larry Rinder (Chief Curator of the Whitney Museum of American Art NY), Reed
Meg Ryan, NYU
Harrison Ford, Ripon
Tim Russert, John Carroll U
John Schnatter (founder of Papa John’s Pizza), Ball State U.
Arnold Schwarzenegger, University of Wisconsin/Superior
David Schwimmer, Northwestern
Jerry Seinfeld, Queens College
Donna Shalala, Western College for Women (now part of Miami University)
Dwight Smith (outfielder for Cubs), Spartanburg Methodist College
Carly Simon, Sarah Lawrence
Howard Stern, Boston U
Donald Trump, Fordham
Ted Turner (kicked out of college twice)
Alice Walker, Sarah Lawrence
Robert James Waller (Bridges of Madison County), U Northern Iowa
Barbara Walters, Sarah Lawrence
Denzel Washington, Fordham
George Washington, College of William and Mary
Gene Wilder, U Iowa
Oprah Winfrey, Tennessee State
Henry Winkler, Emerson
Luther Vandross, Western Michigan University
Jack Welch (former CEO of GE), U. Mass
Graduates of Canadian Universities:
Margaret Atwood, U of Toronto
Donald Sutherland, U of Toronto
Eric McCormack (Will & Grace), Ryerson U
William Shatner, McGill
Martin Short, McMasters
Alex Trebeck, U of Ottowa
Paul Beeson (President, Major League Baseball Association), U Western Ontario