SOS Coast Guard

An internationally-notorious criminal scientist returns to the US to sell his latest invention, a disintegrating gas, to a foreign power. When he arrives, however, he is spotted by a young Coast Guard man, whom he kills - and thus earns the enmity of the entire US Coast Guard, but especially the murdered Guardsman's older brother who, together with his reporter-girlfriend and her comical photographer, vigorously sets to tracking him down and interfering with his plans to develop the city-melting gas in quantity. A Republic Serial in 12 Chapters.

• 
  William Witney
• 
  Alan James

• 
  Bela Lugosi
  Boroff
• 
  Ralph Byrd
  Lt. Terry Kent
• 
  Maxine Doyle
  Jean Norman
• 
  Richard Alexander
  Thorg
• 
  Lee Ford
  Snapper McGee
• 
  Herbert Rawlinson
  Cmdr. Boyle
• 
  John Picorri
  G.A. Rackerby [Chs. 2-12
• 
  Allen Connor
  Dick Norman
• 
  Thomas Carr
  Ens. Jim Kent [Ch. 1
• 
  Lawrence Grant
  Rabinisi - Boroff's Spokesman at Screening [Ch. 1
• 
  Carleton Young
  Henchman Dodds [Ch. 4]
• 
  George Chesebro
  L.H. Degado - Chief Thug [Ch. 5]
• 
  Ranny Weeks
  Wies - Ambulance Orderly Thug [Ch. 4]