This article is from the Charmed FAQ, by Colin A. McGregor (firstname.lastname@example.org) with numerous contributions by others.
Unless otherwise stated, the person in question has appeared in, or worked
on at least one episode of first, second, third and fourth seasons. Also
note that in the case of Brian Krause, he started as a recurring guest
star before becoming a main character.
Bryant, Karis Paige (Jenny) c.1985 - ? (Second season)
Combs, Holly Marie (Piper Halliwell) - 3 December 1973 - San Diego,
Doherty, Shannen Maria (Prue Halliwell) - 12 April 1971 - Memphis,
Tennessee (Pilot through third season)
Gregory, Dorian - (Daryl Morris) 26 January 1971 - Washington, DC
King, T. W. (Andy Trudeau) - 1 October 1965 - Hollywood, California (First
Krause, Brian (Leo Wyatt) 1 February 1972 - El Toro, California
McGowan, Rose (Paige Matthews) 5 September 1973, Florence, Italy (Fourth
and fifth season)
McMahon, Julian (Cole Turner) - 27 July 1968 - Sydney, New South Wales,
Australia (Third and Fourth season)
Milano, Alyssa Jayne - (Phoebe Halliwell) 19 December 1972 - Brooklyn, New
Vaughan, Greg (Dan Gordon) - 15 June 1973, Dallas, Texas (Second season)
Some notable recurring guest stars:
Baker, Leigh Allyn (Hannah Webster) ? - ? (First season)
Hughes, Finola (Patty Halliwell) 29 October 1960 - London, England
Rhodes, Jennifer (Penny "Grams" Halliwell) ? - ?
Roberts (II), Neil (Rex Buckland) ? - ? (First season)
Burge, Constance M. (Executive Producer) - ? - ?
Kern, Brad (Executive Producer) - ? - ?
Spelling, Aaron (Producer) - 22 April 1928 - Dallas, Texas