JW/mark's voice.. helium'd?
John Hawkes' voice dint sound a'tall like him. Aided by special effects??
Hawkes face was also unrecognizable, claimed in spite of seeing several other features of his.
Reserved the dvd from the county library for explanatory extras, clueless till then.
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DrHorrible's Singalong Blog ('08): [last words] "Don't worry. Captain Hammer will save us."