 The credited cast was entirely from the Mercury Theatre troupe,  which Orson Welles (qv) founded when he was 21 years old. The  Mercury Theatre did radio dramatizations of such works as "Les  Miserables", "A Tale of Two Cities", "Treasure Island", "The 39  Steps", "Abraham Lincoln", "The Count of Monte Cristo and, most  famously, "The War of the Worlds".