David Kaufman: Danny

Rickey D'Shon Collins: Tuck

Grey DeLisle: Sam, Valerie (Temporada 1), Estrella (Temporada 1)

Colleen O'Shaughnessey: Jazz

Rob Paulsen: Jack, Technus, Fantasma de las Cajas

Kath Soucie: Maddie

Cree Summer: Valerie (Temporadas 2 y 3)

Martin Mull: Vlad

Ron Perlman: Lancer

S. Scott Bullock: Dash

Maria Canals: Paulina

Dat Phan / James Sie: Kwan

Matthew St. Patrick / Kevin Michael Richardson: Skulker

Tara Strong: Ember, Spectra, Estrella (Temporadas 2 y 3)

Jim Ward: Bertrand

Eric Roberts: Dark Danny

Anna Sophia Robb: Dani

Peri Gilpin: Desiree

Taylor Lautner : Sangre Joven

William Baldwin: Johnny 13

Peter MacNicol: Poindexter