A master assassin and master of voice mimicry able to retrieve any phone-based intel including faxes. Telephone Mask is sent after scientists who support the Gorangers with the aid of Zolders as his inside men. After killing off Wakayama, Denwa Kamen nearly poisons Shimizu when MidoRanger intervenes. The Gorangers soon uncover his method and track the Masked Mutant down as he attempts to take out the chief officers of EAGLE.
They manage to locate the Masked Mutant's base at the Eastern Recording Institute thanks to agent 0079. The Gorangers finish Telephone Mask off with the Goranger Hurricane which it transformed into a plan for the bomb which it ends up faxing into himself blowing him up from the inside.