She was a Silpelit child of around 3-4 years old whose name is her designation number given by the human scientists at the research facility, as she does not possess a personal name of her own. She appears only in episode 10 of the anime when Kurama experiences a series of flashbacks back when he became director at Chief Kakuzawa's island facility. Kurama's flashbacks give insight on the activities the scientists were performing on Diclonius to measure the range and power of their vectors. Everyday, Number 03 was chained up on a wall, and on a far end a machine shot small iron balls at her from different angles. The purpose of that test was to evaluate the maximum range at which each Diclonius's vectors could reach and deflect the balls. When the experience became too traumatic for Number 03, Kurama voiced out his protest for witnessing such inhuman activities. Afterwards, the locks on Number 03's bounds were mysteriously opened up, and she went on a killing spree until she found Kurama. Number 03 had concealed the true length of her growing vectors from the research team, aiding in her escape. She immediately placed her vector on his head and thanked him in a haunting manner, before being shot dead at the head by Professor Kakuzawa with an armor piercing bullet. Several months later, Kurama's wife gave birth to a Diclonius baby (Mariko) much to Kurama's fear and astonishment. But, it made Kurama to quickly recall his near-death experience with Number 03 and finally realized that the virus is passed on through the vectors. The official Elfen Lied website confirms that Number 03 is Nana's older sister
Son of the Elena, the leader of the Titan worshiping cult and the widow of the Squad leader Heath. Found by Carlo Pikel and Solm Hume of the scouting legion, after being born from Elena's dead body who had been eaten by a Titan.
Ian (イアン) is a member of the Stationary Guard in Trost District. Ian first appears in Ch. 5 after Trost District is breached by the Colossal Titan. He compliments Mikasa for killing a Titan that was attacking a group of evacuating civilians. In Ch. 12, a plan is formed for Eren to use his Titan powers to seal the breach with a boulder. Ian is placed in charge of the elite squad assigned to protect Eren on his mission. When Eren loses control of his Titan form in Ch. 13, Mitabi and Rico advise Ian to abort the mission and retreat. However, Ian orders his soldiers to continue to defend Eren down to the last man, as Eren is their only hope against the Titans. In Ch. 14, Eren regains his senses due to Armin's intervention, and Ian orders his soldiers to protect him until he reaches the breach even at the cost of their own lives. Ian uses himself as bait to lure Titans away from Eren, sacrificing his life in order to ensure the success of the mission. First Appearance Anime: Ep. 5 (Source: Shingeki no Kyojin Wikia)
Age: 15 Birthday: April 7 Height: 175 cm (5'8") Weight: 65 kg (140 lbs) Affiliations: Scouting Legion Graduation Rank: 6th Ranked 6th of the trainee class. Extremely pessimistic about the War with the Titans. He ends up leading the people on the supply mission for gas. From the Trost District. Seems like he's amazed by Mikasa's beauty, and thus hating Eren for always being with her. (Source: Wikipedia) Note: Jean Kirstein is the official English translation by Kodansha.
Keith Shardis was the head instructor of 104th Trainees Squad. He seemed to be a friend or have some sort of relationship with Dr. Grisha, as he knew Eren is the son of the doctor and praised Eren for his effort. He is a former Commander of the Survey Corps, and was in command when Wall Maria fell in 845. First Appearance Manga: Ch. 15 "One By One" Anime: Ep. 1 "To You Two Thousand Years Later" (Source: Shingeki no Kyojin Wikia)
First Appearance: Anime: Ep. 1 "To You Two Thousand Years Later."