Raja Gosnell Director Freddie Prinze Jr. Fred Jones Actor Sarah Michelle Gellar Daphne Blake Actor Matthew Lillard Norville 'Shaggy' Rogers Actor Linda Cardellini Velma Dinkley Actor Rowan Atkinson Mondavarious Actor Isla Fisher Mary Jane Actor Miguel A. Núñez Jr. Voodoo Maestro Actor Steven Grives N' Goo Tuana Actor Sam Greco Zarkos Actor Charles Cousins Velma's Friend Actor Kristian Schmid Brad Actor Nicholas Hope Old Man Smithers Actor Neil Fanning Scooby Voice James Gunn Screenwriter, Writer Craig Titley Writer Richard Suckle Producer, Executive Producer Charles Roven Producer Robert Engelman Executive Producer Andrew Mason Executive Producer Kelley Smith-Wait Executive Producer William Hanna Executive Producer Joseph Barbera Executive Producer David Eggby Cinematographer Kent Beyda Film Editing David Newman Original Music Bill Boes Production Design Bill Booth Art Director Donna Brown Art Director Pipo Wintter Art Director Gabrielle Gliniak Art Director Suza Maybury Set Decoration Matthew Putland Set Decoration Jodie Allen Set Decoration Sandy Wingrove Set Decoration Leesa Evans Costume Design Mary Vernieu Casting Kurt Williams Visual Effects Producer Peter Crosman Visual Effects Supervisor Stephen Jones Unit Production Manager