Cyborg

The Cyborg is an NPC that will appear when you have defeated Plantera and have a vacant house available. He sells The Cyborg clothes, Nanites, Rockets and The Proximity Mine Launcher.

Items Sold
Once the Cyborg has moved into a house, he will sell the following:

Names
The Cyborg may have any of the following names: A.N.D.Y., Fender, Alpha, Beta, Ci, Delta, Zeta, Kappa, Omicron, Niner-7, Omega, Sigma, Upsilon, T-3E0, Nu, Mu, Gamma, Lambda, Phi, Syn-X, Rho, Theta, and the rarest, Skylah.

Trivia

 * Besides A.N.D.Y., Fender, Ci, Niner-7, T-3E0, Skylah, and Syn-X, almost all his names are letters in the Greek alphabet
 * The name "Fender" may be a reference to the character "Bender", the robot on ''Futurama," or Fender from the Disney movie "Robots"
 * The name A.N.D.Y. may be a reference to the character "Deputy Andy", the android law enforcer on Eureka
 * The name "T-3E0" may be a reference to "C-3P0" from Star Wars
 * The name Skylah may be a reference to Skynet from Terminator
 * The names Nu, Mu and Lambda are references from the game series "Blazblue"
 * The name A.N.D.Y. may be a loose reference to Andy writing his name in capital letters on Buzz Lightyear's foot in Toy Story.
 * The name "Phi" may be a reference to Sonic the Hedgehog, where Sonic finds a robot named Phi.
 * The name "Niner-7" may be a reference to "Seven of nine" from Star Trek
 * The name "Omega" is most likely a reference to the Sonic series as there is a character named Omega that is a robot - it could also be a reference to Mega Man Zero 3, in which there is also a robot known as Omega. It may also be a reference to the superboss of the same name in Final Fantasy 5.
 * The name "Sigma" is most likely a reference to the Megaman X series as the main villain, Sigma, happens to be a robot (more specifically, a Reploid).

Not by creator of this but the name sigma might be a refrence to bioshock 2 where you play as sigma which is a big daddy

Quotes

 * My expedition efficiency was critically reduced when a projectile impacted my locomotive actuator. (This is a reference to the "Arrow in the Knee" quote from TESV: Skyrim)
 * And then Unit 492-8 said, "Who do you think I am, Unit 472-6?" HA HA HA
 * I built myself a taste mechanism, so I can drink some ale!
 * Sure, me and [Pirate name] are pals, but I hate it when his parrot does his business on me. That stuff's corrosive! (Only if Pirate is present)
 * Sometimes I come off a bit... Get it? a bit?
 * So that "punk" lookin' chick is an inventor, eh? I think I could show her a thing or two! (Only if Steampunker is present)
 * This sentence is false, or is it? (Reference to Portal 2)
 * Have you defeated the Wall of [Name of Guide] ?