Pravidelné obsazení sezóny 4

1. 

   Frank Welker

   Scooby-Doo / Fred Jones (voice)

2. 

   Grey DeLisle

   Daphne Blake (voice)

3. 

   Mindy Cohn

   Velma Dinkley (voice)

4. 

   Matthew Lillard

   Norville 'Shaggy' Rogers (voice)

Hostující obsazení epizody 7

1. 

   Frances Conroy

   Angie Dinkley (voice)

2. 

   Kath Soucie

   Nan Blake (voice)

3. 

   Patrick Warburton

   Sheriff Bronson Stone (voice)

4. 

   Beverly D'Angelo

   Sheila Altoonian (voice)

5. 

   Kevin Dunn

   Garden Manager (voice)

6. 

   Tom Kenny

   Auctioneer (voice)

7. 

   Richard McGonagle

   Ed Machine (voice)

Štáb 0

There are no crew records added to Tajemný lektvar.