I italicized those I found of particular interest. 

1959
Howard Alk
Roger Bowen
Severn Darden
Andrew Duncan
Barbara Harris
Mina Kolb
William Mathieu
Sheldon Patinkin
Bernard Sahlins
Paul Sills
Eugene Troobnick

1960
Alan Arkin
Paul Sand
Joyce Sloane

1961
Bill Alton
John Brent
Hamilton Camp
Del Close
Melinda Dillon
Anthony Holland
Zohra Lampert
Alan Myerson
Irene Riordan
Joan Rivers
Avery Schreiber

1962
Mona Burr
Dennis Cunningham
Dick Schaal

1963
Jack Burns
MacIntyre Dixon
Ann Elder
Judy Harris
Melissa "Sally" Hart
Richard Libertini
Omar Shapli

1964
Ian Davidson
Eugene Kadish
Fred Kaz
Harv Robbin
David Steinberg

1965
Joan Bassie
Robert Benedetti
Alex Canaan
Sondra Caron
Josephine Forsberg
Judy Graubart
Robert Klein
David Paulsen
Fred Willard

1966
Bob Curry
Sid Grossfeld
Sandy Holt
Jon Shank
David Walsh
Penny White

1967
J. J. Barry
Peter Boyle
Martin Harvey Freidberg
Burt Heyman
Lynne Lipton
Ira Miller

1968
Murphy Dunne
Michael Miller
Carol Robinson
Eugenie Ross-Leming

1969
David Blum
Martin de Maat
Jim Fisher
Joe Flaherty
Nate Herman
Pamela Hoffman
Roberta Maguire
Judy Morgan
Brian Doyle Murray
Harold Ramis
Eric Ross
Cyril Simon
Paul Taylor

1971
John Belushi
Dan Ziskie

1972
David Rasche
Ann Ryerson

1973
John Candy
Stephanie Cotsirilos
Tino Insana
Bill Murray
Jim Staahl
Betty Thomas

1974
Cassandra Danz
Don DePollo
Michael J. Gellman
Deborah Harmon
Richard Kurtzman
Raul Moncada
Mert Rich
Doug Steckler
Paul Zegler

1975
Bernadette Birkett
Miriam Flynn
George Wendt

1976
Will Aldis
Eric Boardman
Steven Kampmann
Shelley Long
Jim Sherman

1977
Cynthia Cavalenes
Larry Coven

1978
Jim Belushi
Tim Kazurinsky
Audrie Neenan
Lawrence J. Perkins
Maria Ricossa

1979
Danny Breen
Mary Gross
Bruce Jarchow
Nancy McCabe-Kelly

1980
Meagen Fay
Lance Kinsey
Rob Riley

1981
Nonie Newton-Breen
Susan Bugg
John Kapelos
Rick Thomas

1982
Craig Taylor

1983
Bekka Eaton
Ed Greenberg
Michael Hagerty
Isabella Hoffman
Richard Kind

1985
Andrew Alexander
Mindy Bell
Jim Fay
Mona Lyden
Len Stuart

1986
Dan Castellaneta
Rick Hall
Bonnie Hunt
Maureen Kelly
Harry Murphy

1987
Steve Assad
Kevin Crowley
Aaron Freeman
Ruby Streak
Barbara Wallace

1988
Joe Liss
Mike Myers

1989
Chris Farley
Tim Meadows
Joel Murray
David Pasquesi
Judith Scott
Holly Wortell

1990
Tom Gianas
Bob Odenkirk
Tim O'Malley
Jill Talley

1991
Fran Adams
Cynthia Caponera
Steve Carell
Michael McCarthy
John Rubano
Ron West

1992
Paul Dinello
Kelly Leonard
Ruth Rudnick
Amy Sedaris

1993
Stephen Colbert
David Razowsky

1994
Scott Adsit
Scott Allman
Jackie Hoffman

1995
Rachel Dratch
Jon Glaser
Jenna Jolovitz
Adam McKay

1996
Kevin Dorff
Tina Fey
Mick Napier
Lyn Pusztai

1997
Jim Zulevic

1998
Rachel Hamilton
T.J. Jagodowski
Susan Messing
Jeff Richmond
Tami Sagher
Rich Talarico
Stephnie Weir

1999
Ed Furman
Beth Kligerman

2000
Craig Cackowski
Sue Gillan
Angela Shelton

2001
Debra Downing
Nyima Funk
Martin Garcia
Michael Kennard
David Pompeii

2002
Brian Boland
Josh Funk
Al Samuels
Abby Sher

2003
Dan Bakkedahl
Jean Villepique
Liz Cackowski
Lisa Brooke
Antoine McKay

2004
Brian Gallivan
Maribeth Monroe
Robin Hammond
Claudia Michelle Wallace

2005
Matt Craig
Molly Erdman

2006
Joe Canale
Ithamar Enriquez
Kirk Hanley
Marc Warzecha

2007
Matt Hovde
Brad Morris
Amber Ruffin