His name is Vincent.
Juliet's last name in the TV show "Lost" is "Burke."
Vincent
"John Locke" is Locke's full name in the TV show "Lost."
Ben's full name in the TV show "Lost" is "Benjamin Linus."
Desmond's full name in the TV show "Lost" is "Desmond Hume."
Faraday's full name in the TV show "Lost" is "Daniel Faraday."
There is no big significance of the name Renti on the tv show Lost. There has been a character that appeared on the episode 'The Lighthouse dial' who was named Renti.
Raggs
'Rinty'
Sawyer's real name in "Lost" is "James Ford."
The robot's name is simply "Robot" or "The Robot" on the TV show Lost in Space.
Hugo Reyes