Nationality: Russian
Age: 16
Gender: Male
Height: 173cm
Weight: 73kg
Surgery base: Datura stramonium
M.A.R.S ranking: #10
Ivan Perepelkin is a Russian boy under Sylvester Asimov's tutelage who joined the Annex Project along his sister, Elena, to find a cure for the deadly A.E. virus that afflicts the Earth.
He is introduced as an honest, albeit gullible, individual. He developed a crush on Sheila Levitt after she treated his wounds when he took a punch meant for Jet. Ivan become enraged when Sylvester Asimov's order to not take the drug cost his sister's life. Soon afterwards he begins to act more seriously, similar to his sister, to varying results.
(Source: Terra Formars Wikia)