Sight Unseen

Synopsis
An invisible man gets into Star Labs, and releases a neurotoxin with Tina inside the lab. Then he starts killing scientists who worked on the project. Flash must find the invisible man and save his friend.

Main Characters

 * The Flash (Barry Allen)
 * Julio Mendez
 * Tina McGee
 * Tony Bellows
 * Warren Garfield
 * Michael Murphy
 * Reggie

Villains

 * Brian Gideon
 * Quinn

Other Characters

 * Taylor Cartwright
 * Edwards
 * Emil Velinski
 * Ruth Werneke

Locations

 * Central City
 * Central City Police Department
 * Star Labs

Trivia

 * It was Robert Shayne's final TV role.