Minor Role (uncredited)
Preso sob a acusação de ter matado seu irmão, Geoffrey Radcliffe aguarda sua sentenção - morrer na forca. Mas, logo depois de receber a visita de seu amigo Dr. Frank Griffin, Geoffrey simplesmente desaparece. O inspetor policial Sampson começa a investigar e acredita que Griffin é na verdade o irmão do Homem Invisível original (do primeiro filme) e deu a Geoffrey a fórmula da invisibilidade. Continuação do clássico de 1933.
State Trooper (uncredited)
O Coronel Burr MacFay suspeita que um jovem queira assassina-lo. Ele liga para Nick e Nora (com o novo bebê) para ajudá-lo.
Vani Martin
Reporter Sue Walker has too much inside information on the local gambling rackets to suit her sweetheart, Detective Lieutenant Jerry Brown, chief of the police Homicide Squad. When the call comes in that there has been a killing at Lefty Ross' place, a notorious gambling joint, Jerry is peeved when Sue beats him there. He discovers that gambler Jimmy Clark was killed as he answered a telephone call, and his body is riddled with bullets but Jerry can't find any weapon. Sue is amazed to see Gloria Cunningham there. Gloria's father is one of the town's leading reformers and she is engaged to District Attorney Richard Sutton. Ross decides to give Sutton all the information he needs and makes an appointment to go to Sutton's home. Once there, Ross is called to the telephone before he can give any information, and is killed in the same mysterious manner as Jimmy Clark.
