 In season one Frank Welker (qv) voiced 7 of the 13 original  Decepticons. He provided the voices of Megatron, Soundwave, Skywarp,  Rumble, Frenzy, Laserbeak (screeches), and Ravage (growls). The  exceptions were Starcream (Chris Latta (qv)), Thundercracker  (John Stephenson (I) (qv)), Shockwave (Corey Burton (qv)), and  Reflector (three identical robots with Chris Latta (qv)s voice).