It seems that every 5-10 years there's a whole new cast and only a few people from the previous are still there


1975-1980 :
Original Cast


1980-1985 : WHOLE NEW CAST

1985-1986 : Annother whole new cast


1986-1990 : Whole new casyt only some form the previous seasons till there



1990- 1995 : Only a few from the previous 5 years still on, bunch of new cast members


1995- 2000 : WHOLE NEW CAST with some leaving, some comiong

2000- present : Only a few were still left from the previous 5 years


Examples in next post

1975- 1980
George Coe (1975 October 11 - 1975 October 25 [Credited], 1975 November 8 - 1978, 1986 [Uncredited]) (F)
Chevy Chase (1975 - 1977)
Dan Aykroyd (1975 - 1979) (•)
John Belushi (1975 - 1979) (•)
Michael O'Donoghue (1975 October 11 - 1975 October 25 [Credited], 1975 November 8 - 1979, 1981 [Uncredited]) (F)
Jane Curtin (1975 - 1980)
Garrett Morris (1975 - 1980)
Laraine Newman (1975 - 1980)
Gilda Radner (1975 - 1980) (•)
Bill Murray (1976 - 1980)
Tom Davis (1977 - 1980) (F)
Al Franken (1977 - 1980) & (1985 - 1994) (F)
Don Novello (1978 - 1980) & (1985 - 1986) (F)
Peter Aykroyd (1979 - 1980) (F)
Jim Downey (1979 - 1980) (F)
Paul Shaffer (1979 - 1980) (F)
Tom Schiller (1979 - 1980) (F)
Alan Zweibel (1979 - 1980) (F)
Brian Doyle-Murray (1979 - 1980) & (1981 - 1982) (F)
Harry Shearer (1979 - 1980) & (1984 - 1985)

5 years, new cast :
Denny Dillon (1980 - 1981)
Gilbert Gottfried (1980 - 1981)
Yvonne Hudson (1980 - 1981) (F)
Matthew Laurance (1980 - 1981) (F)
Gail Matthius (1980 - 1981)
Laurie Metcalf (1980 - 1981) (F)
Emily Prager (1980 - 1981) (F)
Ann Risley (1980 - 1981)
Charles Rocket (1980 - 1981)
Patrick Weathers (1980 - 1981) (F)
Tony Rosato (1980 - 1982)
Robin Duke (1980 - 1984)
Tim Kazurinsky (1980 - 1984)
Eddie Murphy (1980 - 1984) (•)
Joe Piscopo (1980 - 1984)
Christine Ebersole (1981 - 1982)
Mary Gross (1981 - 1985)
Brad Hall (1982 - 1984)
Gary Kroeger (1982 - 1985)
Julia Louis-Dreyfus (1982 - 1985)
Jim Belushi (1983 - 1985)
Billy Crystal (1984 - 1985)
Christopher Guest (1984 - 1985)
Rich Hall (1984 - 1985)
Martin Short (1984 - 1985)
Pamela Stephenson (1984 - 1985)

5 years totally new cast

1 season, starting in 1986, the only ones form the previous season still there were Dennis Miller, Jon Lovitz and Nora Dunn

Joan Cusack (1985 - 1986)
Robert Downey Jr. (1985 - 1986)
Anthony Michael Hall (1985 - 1986)
Randy Quaid (1985 - 1986)
Terry Sweeney (1985 - 1986)
Danitra Vance (1985 - 1986)
Dan Vitale (1985 - 1986) (F)
Damon Wayans (1985 - 1986) (F)
Nora Dunn (1985 - 1990)
Jon Lovitz (1985 - 1990) (•)
A. Whitney Brown (1985 - 1991) (F)
Dennis Miller (1985 - 1991)
Jan Hooks (1986 - 1991)
Victoria Jackson (1986 - 1992)
Dana Carvey (1986 - 1993) (•)
Phil Hartman (1986 - 1994) (•)
Kevin Nealon (1986 - 1995)
Ben Stiller (1988 - 1989) (F)
Mike Myers (1988 - 1995) (•)

Another 5 years : Only ones still letf : Pihl, Dana, Kevin, Jan and Victoria

Chris Rock (1990 - 1993) (•)
Rob Schneider (1990 - 1994)
Julia Sweeney (1990 - 1994)
Chris Farley (1990 - 1995) (•)
Adam Sandler (1990 - 1995) (•)
David Spade (1990 - 1996) (•)
Tim Meadows (1990 - 2000) (•)
Beth Cahill (1991 - 1992) (F)
Siobhan Fallon (1991 - 1992)
Robert Smigel (1991 - 1993) (F)
Melanie Hutsell (1991 - 1994)
Ellen Cleghorne (1991 - 1995)
Sarah Silverman (1993 - 1994) (F)
Michael McKean (1993 - 1995)
Jay Mohr (1993 - 1995) (F)
Norm MacDonald (1993 - 1998)
Morwenna Banks (1994 - 1995)
Chris Elliott (1994 - 1995)
Janeane Garofalo (1994 - 1995)
Laura Kightlinger (1994 - 1995)
Mark McKinney (1994 - 1997)
Molly Shannon (1994 - 2001)

Another 5 years, only David is ;eft

David Koechner (1995 - 1996)
Nancy Walls (1995 - 1996)
Fred Wolf (1995 - 1997) (F)
Jim Breuer (1995 - 1998)
Cheri Oteri (1995 - 2000)
Colin Quinn (1995 - 2000)
Will Ferrell (1995 - 2002) (•)
Chris Kattan (1995 - 2003) (•)
Darrell Hammond (1995 - )
Ana Gasteyer (1996 - 2002)
Tracy Morgan (1996 - 2003) (•)
Jimmy Fallon (1998 - 2004) (•)
Chris Parnell (1998 - )
Horatio Sanz (1998 - )
Rachel Dratch (1999 - )
Maya Rudolph (1999 - )

Another 5 years, only ones still on were
Molly Shannon ( left in 2001 :( )
Will Ferrell ( left in 2002 :( )
Chris Kattan and Tracy Morgan ( left in 2003 :( )
Jimmy Fallon ( left in 2004 :( )
Featured players that were one or two season wonders
Jerry Minor- 2000-2001
Dean Edwards 2001-2003
and
Jeff Richards - 2001-2004