then and now: CAST of GHOSTBUSTERS (1984)

Then and Now is making a pit-stop at the classic '80s romp, Ghostbusters, which to this day remains one of the best comedies around. It's then-relatively-young and green cast have gone on to some lengthy careers, so what better way to honor them by taking a look at some of their earliest and latest work? A word of warning -- you'll notice that the beloved Slimer is noticeably absent, as he has seemingly retired from film work.

Bill Murray as Dr. Peter Venkman

In a 1977 episode of the TV series Saturday Night Live

and in the 2009 film Get Low

Sigourney Weaver as Dana Barrett

In the 1978 film Madman

and in the 2009 film Avatar

Dan Aykroyd as Dr. Raymond Stantz

In a 1975 episode of the TV series Coming Up Rosie

and in a 2009 episode of the TV series Saturday Night Live

Harold Ramis as Dr. Egon Spengler

In a 1977 episode of the TV series SCTV

and in the 2009 movie Year One

Ernie Hudson as Winston Zeddmore

In a 1978 episode of the TV series Fantasy Island

and in a 2009 episode of the TV series Law and Order

Rick Moranis as Louis Tully

In a 1981 episode of the TV series SCTV

and on the set of the 2006 movie Brother Bear 2

Annie Potts as Janine Melnitz

In the 1978 movie Corvette Summer

and in a 2009 episode of the TV series Two and a Half Men