Which actors are very active in the fight against AIDS.  In other
words, Richard Gere heads a foundation to fight AIDS.  Are there
others that do more than just lend their names?

rlasser..

Thanks for your question.  There are several celebrities that are
active in AIDS awareness:

Bono
Sure, Bono's a star, but he's done his homework on AIDS, poverty 
http://www.oregonlive.com/commentary/oregonian/index.ssf?/base/editorial/1097928452288440.xml

Andrew Shue
http://www.grassrootsoccer.org/

Elizabeth Taylor
http://www.elizabethtayloraidsfoundation.org/

Elton John
http://www.ejaf.org/

Danny Glover
http://www.aumag.org/coverstory/june02cover.html

Barbara Streisand
http://www.barbrastreisand.com/bio_bio_pg4.html

Sharon Stone
http://extratv.warnerbros.com/dailynews/extra/04_02/04_23a.html
http://www.amfar.org/cgi-bin/iowa/amfar/record.html?record=5

Morgan Fairchild
http://www.askmen.com/women/actress_200/249b_morgan_fairchild.html

If you visit http://www.amfar.org/cgi-bin/iowa/amfar/record.html?record=13
you can see a list of celebrities that sit on the National Council of
AMFAR, The American Foundation for AIDS research.  Doing a search on
their name and "AIDS" brings up a great deal of the work they do in
promoting AIDS awarenes aside from just attending functions.

Thanks for your question.  If you need any additional clarification,
please let me know.

Regards,

-THV

Search Strategy:
"Celebrity activist" aids

This might be helpful:

Aid For AIDS 
8235 Santa Monica Blvd.
Suite 200
West Hollywood, CA 90046
Phone: (323) 656-1107
Fax: (323) 650-4323
Web: www.aidforaids.net 
For over 20 years, AFA has been providing direct financial assistance
to individuals and families living with HIV/AIDS that are disabled and
living below the poverty line.
Entertainment-industry supporters: John C. Reily, Teri Garr, Caroline
Rhea, Jason Alexander, James Earl Jones, Bruce Villanch, Michael
Feinstein, Eric McCormack, Kathy Griffin, Debbie Reynolds, Julia
Louis-Dreyfus, Jennifer Tilly, Anna Nicole Smith, Carol Channing,
Walter Cronkite, John Bowab, Angela Lansbury, Jo Anne Worley, Sam
Harris, Marilynn Lovell-Matz
Fundraiser(s): Best in "Drag" Show (Oct. 24, 2004); Spa Day LA & SF
(Nov. 17, 2004); Dining Out For Life (April 28, 2005); Tony Awards
Party (June 2005)

AIDS Project Los Angeles 
The David Geffen Center
611 S. Kingsley Dr.
Los Angeles, CA 90005
Phone: (213) 201-1600
Fax: (213) 201-1595
Web: www.apla.org 
Provides prevention, advocacy and services to people living with
HIV/AIDS in Los Angeles County
Entertainment-industry supporters: The Walt Disney Company,
DreamWorks, Paramount Pictures, Universal Studios, Warner Bros., Clear
Channel Communications, ICM
Fundraiser(s): Summer Party (July 24, 2004); AIDS Walk Los Angeles
(Oct. 17, 2004); National AIDS Marathon Training Program (ongoing)

[ . . . ]

American Foundations for AIDS Research (amfAR) 
120 Wall St.
13th Floor
New York, NY 10005
Phone: (212) 806-1600
Fax: (212) 806-1601
Web: www.amfar.org 
The nation's leading nonprofit organization dedicated to the support
of AIDS research, AIDS prevention, treatment education and the
advocacy of sound AIDS-related public policy. Since 1985, amfAR has
invested nearly $220 million in support for its programs and awarded
grants to more than 2,000 research teams worldwide.
Founder(s): Dr. Mathilde Krim, Elizabeth Taylor
Entertainment-industry supporters: Elizabeth Taylor, Sharon Stone,
Clive Davis, Jane Eisner, Richard Gere, Elton John, Sherry Lansing,
Lorne Michaels, Natasha Richardson, Bob and Harvey Weinstein
Fundraiser(s): Annual Cinema Against AIDS benefits (Cannes and Venice
Film festivals)

http://www.hollywoodreporter.com/thr/film/feature_display.jsp?vnu_content_id=1000564796

The list of actors for aids is presumably much shorter.