Stała obsada sezonu 8

1. 

   Frankie Muniz

   Malcolm

2. 

   Jane Kaczmarek

   Lois

3. 

   Bryan Cranston

   Hal

4. 

   Justin Berfield

   Reese

5. 

   Erik Per Sullivan

   Dewey

6. 

   Christopher Masterson

   Francis

7. James Rodriguez

   Jamie

8. Lukas Rodriguez

   Jamie

Goście specjalni 12

1. 

   Suzie Pollard

   Hanna

2. 

   Lynsey Bartilson

   Danielle

3. 

   Mark DeCarlo

   Announcer

4. 

   Sandra Purpuro

   Miss Zeiger

5. 

   Sonya Eddy

   Mabel

6. 

   Ryan Raftery

   Dick

7. 

   Wendy Worthington

   Cheryl

8. Karen Russell

   Janet

9. Andrea Silvers

   Contestant

10. Joe Donohoe

    Contestant's Boyfriend

11. 

    Darryl Henriques

    Oven Guy

12. Fernando Jiménez

    Cell phone Guy

Ekipa 6