Suggestions by @bigfootrules

Fred Tatasciore

as skekUng in The Dark Crystal: Attack of the Garthim

Jim Cummings

as skekUng in The Dark Crystal: Attack of the Garthim

Christopher Lloyd

as urHom in The Dark Crystal: Attack of the Garthim

Seth MacFarlane

as skekLi in The Dark Crystal: Attack of the Garthim

Jodi Benson

as UrSen in The Dark Crystal: Attack of the Garthim

Jim Cummings

as skekShod in The Dark Crystal: Attack of the Garthim

Genndy Tartakovsky

as Director in The Dark Crystal: Attack of the Garthim

J.K. Simmons

as skekHak in The Dark Crystal: Attack of the Garthim

Brad Bird

as Director in The Dark Crystal: Attack of the Garthim

Bebe Neuwirth

as UrSen in The Dark Crystal: Attack of the Garthim

Bebe Neuwirth

as skekSa in The Dark Crystal: Attack of the Garthim

Kevin Michael Richardson

as skekShod in The Dark Crystal: Attack of the Garthim

David Tennant

as urLii in The Dark Crystal: Attack of the Garthim

Wendy Malick

as skekSa in The Dark Crystal: Attack of the Garthim

James Hong

as skekShod in The Dark Crystal: Attack of the Garthim

Christopher Lloyd

as urSu in The Dark Crystal: Attack of the Garthim

'Weird Al' Yankovic

as skekLi in The Dark Crystal: Attack of the Garthim

Jim Cummings

as skekNa in The Dark Crystal: Attack of the Garthim

Keith David

as skekUng in The Dark Crystal: Attack of the Garthim

Clancy Brown

as skekUng in The Dark Crystal: Attack of the Garthim