Venusians are people from Venus. The Twilight Zone has three different accounts of Venusians.
Eye Stalk Venusian Edit
These Venusians appear in the episode 'Mr. Dingle the Strong' (March 3, 1961) and conduct an experiment where in they give Mr. Dingle, a human, super intelligence to see how the Earthman will utilize it. They meet two Martians (who share a common robotic body) and learn that Mr. Dingle had previously been granted Super Strength only to use it for his own gain.
Three Eyed Venusian Edit
These Venusians make their only visual appearance in The Twilight Zone during episode 64 (the 28th episode of Season 2 which aired on May 26, 1961) which is titled 'Will the Real Martian Please Stand Up'. During the episode two police officers are investigating a crashed space ship and believe that an Alien from the site has made his way into a local diner. In the episode the officers and most of the customers perish when a bridge collapses; save one who returns to the Diner and begins talking to the cook. The man reveals that he has three arms and comes from Mars and brags that his people will have a colony on Earth soon. The cook chuckles, and tells the man he's too late- Venus already has a colony on Earth and has intercepted the Martian Fleet. The Cook then takes off his hat revealing a third eye and continues to find humor in the Martian's shocked expression at finding his plans foiled.
Tailed Venusian Edit
The Episode 'Hocus-Pocus and Frisby' (April 13, 1962) mentions a Venusian that has a tail and is a talented musician and is being kept on display by the aliens of that episode.