Below is a list of the cast  and other info about the movie as listed by the  The Internet Movie Database ..  On a side note, in the credits it said "The actors in this film were  in no way mistreated".  :-)

Info

Produced by:    TriStar Pictures / Gracie Films

Certification:   PG-13 (re-rated on appeal) / Canada:PG
 
Language:   English

Runtime:  USA:138 min.
 
Sound Mix:    DTS / Dolby SR / SDDS

Distributed by:   Sony Pictures Entertainment [us] / TriStar Pictures

 MPAA reasons:
 

              Rated PG-13 on appeal for strong language, thematic elements, nudity and a

Directed by       James L. Brooks
 
 
 

Cast 

(in credits order)

      Jack Nicholson    .... Melvin Udall
      Helen Hunt   ....Carol Connelly
      Greg Kinnear .....Simon Bishop
      Cuba Gooding Jr. .... Frank Sachs
      Skeet Ulrich  .... Vincent
      Shirley Knight  .... Beverly
      Yeardley Smith  .... Jackie
      Lupe Ontiveros  ....  Nora
      Bibi Osterwald  .... Neighbour Woman
      Ross Bleckner
      Bernadette Balagtas
      Jaffe Cohen
      Laurie Kilpatrick
      Alice Vaughn
      Brian Doyle-Murray  .... Handyman
      Kristi Zea
      Annie Maginnis Tippe
      Patricia Childress
      Rebekah Johnson
      Missi Pyle
      Leslie Stefanson
      Tara Subkoff
      Shane Black  .... Cafe 24 manager
      Peter Jacobson
      Lisa Edelstein
      Stan Bly
      Randall Batinkoff .... Carol's Date
      Jesse James (I)  ....Spencer Stone
      Jamie Kennedy  .... Street Hustler
      Justin Herwick
      Maya Rudolph
      John F. O'Donohue
      David A. Kipper
      Mary Elizabeth Still
      Chloe Brooks  .... Children at Cafe 24
      Cooper Brooks ....Children at Cafe 24
      Sharon L. Alexander
      Holly Denys
      Lawrence Kasdan  .... Dr. Green
      Alison Rose
      Kathryn Morris (I)
      Wood Harris
      Linda Gehringer
      Julie Benz
      Harold Ramis  .... Dr. Betts
      Antonia Jones
      Kaitlin Hopkins
      Jimmy Workman  .... Sean from the bakery
      Danielle Spencer
      Todd Solondz
      Tom McGowan (II) .... Maitre d'
      Danielle Brisebois
      Matt Malloy (I)
      Paul Greenberg
      Dave Hawthorne
 

             rest of cast listed alphabetically

      Kirk Ringberg  ....  Food Waiter
 

Written by (in credits order)

      Mark Andrus   (story)

      Mark Andrus
              and
      James L. Brooks
 
 

Cinematography by

      John Bailey (I)

Music by

      Hans Zimmer
 
Production Design by

      Bill Brzeski
 
Costume Design by

      Molly Maginnis
 
Film Editing by

      Richard Marks (I)

Produced by

      James L. Brooks
      Bridget Johnson
      Laurence Mark    (executive)
      Richard Marks (I)  (co-producer)
      Richard Sakai    (executive)
      John D. Schofield  (co-producer)
      Owen Wilson     (associate)
      Kristi Zea
      Laura Ziskin (executive)
 

Other crew

      Teresa Carriker-Thayer  .... art director: New York
      Marc Caruso  ....  assistant music editor
      Laura Congleton  ....  assistant editor
      Clay A. Griffith .... set decorator
      Lori C. Ingle  ....  assistant editor
      Karen R. Jones .... unit publicist
      Gábor Kövér  .... "b" camera operator
      Dean Lyon  .... compositing supervisor
      Francine Maisler  .... casting
      George Merkert  ....visual effects producer
      Aldric La'Auli Porter ....assistant director
      Roger Schumacher  .... head animal trainer
      Philip Toolin  .... art director
      Sam Urdank  .... still photographer: reshoots first unit
                                still photographer: additional photography Los Angeles first unit
      Jeff Wexler  ....sound