• 
  Jennifer Connelly

  Catherine Miller
• 
  Jennie Garth

  Gillian Sherman
• 
  Giancarlo Esposito

  Tom Divack
• 
  Adam Goldberg

  Evan Mitchell
• 
  Heather Burns

   Joanne Sacker (5 episodes, 2000-2001)
• 
  Christian Campbell

  Tim Sherman
• 
  Tim Carr

  Trainee
• 
  Bradley Cooper

  Clay Hammond

• 
  Melissa De Sousa

  Donna Pasqua
• 
  Nina Garbiras

  Alexandra 'Alex' Brill
• 
  Rick Hoffman

  Freddie Sacker
• 
  Sean Maher

  Chris McConnell
• 
  Tom Everett Scott

  Jack T. Kenderson
• 
  Bridgette Wilson-Sampras

  Bridget Deshiel
• 
  Loring Murtha

  Cal Harper

• 
  Rob Brock

  Lewis Blake
• 
  Peter Dinklage