Marina Constantinescu is a character featured in Girls und Panzer: The Fir Tree and the Iron-Winged Witch.
Marina is a relatively short girl with long ashen hairs, she is seen wearing Count's Sensha-dō uniform during matches with black high socks, a black cape and an awry WW2 Romanian field cap.
Marina is shown to be a careless girl, using divination to build her tactics and not showing any regrets when losing her best tank, she is also quite arrogant by condescend replies to those who doubt her tactics even when proven right and she is known to be rather rough with her subordinates. She is proven to be a quite competent tactician when not using divinations, as she accurately predicted Saunders movements right at the beginning of the match and take advantage over them however her stubborness and refusal to hear her team's advices nullified this advantage.
Despite that she also wants to be loved by her teammates wanting them to call her Marina-chan or by kissing a girl on the neck then biting her to "appropriate her", she also seems to have flirtatious and seductive personality describing her body as "naughty and immoral". She is very skilled in Divination using Gypsy Tarot and has the habit of hoping when walking.
Marina is seen commanding Count High School's flag tank (callsign Tank N°1) in a practice match against Saunders University High School. Right at the beginning of the match she manages to predict Saunders' movements and take the advantage over them, however her stubborness on always relying on divination negated this advantage and she was forced to retreat after losing her escort and the Mareșal. During the retreat she allowed Noemi to stay behind to buy them some time.
- She is a quarter Romanian.
- Her last name could be a reference to General Constantin Constantinescu-Claps, that commanded Romanian Fourth Army during the Battle of Stalingrad.
- Her bad habit of kissing then biting girls in the neck is a reference to the vampire kiss and Count Dracula's method to make a woman his bride or concubine.
- Her rank vataf means captain in Romanian.
- Her skills in divination with Gypsy Tarot might be a reference to the fact that Gypsies are often affiliated with Romania and mysticism using the Major Arcana tarot card deck for Fortune-telling.
- The way she wears her cap, gives the impression that she has bat ears. Which is a reference to vampires who are usually linked to bats in mythology.
- Her name is both a Latin name (feminine form of the name Marinus which means "from the sea") and a Japanese feminine name.
- Main article: Marina Constantinescu/Gallery
|Ooarai Girls High School||Anglerfish Team||Miho Nishizumi ♦ Saori Takebe ♦ Hana Isuzu ♦ Yukari Akiyama ♦ Mako Reizei|
|Duck Team||Noriko Isobe ♦ Taeko Kondou ♦ Shinobu Kawanishi ♦ Akebi Sasaki|
|Hippo Team||Erwin ♦ Caesar ♦ Saemonza ♦ Oryou|
|Rabbit Team||Azusa Sawa ♦ Aya Oono ♦ Ayumi Yamagou ♦ Yuuki Utsugi ♦ Karina Sakaguchi ♦ Saki Maruyama|
|Turtle Team||Anzu Kadotani ♦ Momo Kawashima ♦ Yuzu Koyama|
|Mallard Team||Midoriko Sono ♦ Moyoko Gotou ♦ Nozomi Konparu|
|Leopon Team||Satoko Nakajima ♦ Hoshino ♦ Suzuki ♦ Tsuchiya|
|Anteater Team||Nekota ♦ Momoga ♦ Piyotan|
|Shark Team||Ogin ♦ Murakami ♦ Cutlass ♦ Flint ♦ Rum|
|Miscellanous||Taiga Ou ♦ Sadoka ♦ Mazoe|
|St. Gloriana Girls High School||Darjeeling ♦ Orange Pekoe ♦ Assam ♦ Rosehip ♦ Rukuriri ♦ Nilgiri ♦ Vanilla ♦ Cranberry ♦ Earl Grey|
|Saunders Girls High School||Kay ♦ Alisa ♦ Naomi ♦ Helmet-Chan|
|Anzio Girls High School||Anchovy ♦ Carpaccio ♦ Pepperoni ♦ Amaretto ♦ Gelato ♦ Panettone|
|Pravda Girls High School||Katyusha ♦ Nonna ♦ Klara ♦ Nina ♦ Alina|
|Kuromorimine Girls High School||Maho Nishizumi ♦ Erika Itsumi ♦ Koume Akaboshi ♦ Leila Rou ♦ Emi Kojima ♦ Geshiko ♦ Sangou ♦ Mauko ♦ Sheska|
|Chi-Ha-Tan Academy||Kinuyo Nishi ♦ Fukuda ♦ Haru Tamada ♦ Hosomi ♦ Nagura ♦ Hamada ♦ Teramoto ♦ Ikeda|
|Jatkosota High School||Mika ♦ Aki ♦ Mikko ♦ Touko ♦ Lili|
|BC Freedom High School||Ribbon Warrior||Asparagus ♦ Moules ♦ Bordeaux|
|Das Finale||Marie ♦ Andou ♦ Oshida|
|Tatenashi Girls High School||Shizuka Tsuruki ♦ Rin Matsukaze ♦ Haruka Endou|
|Bonple High School||Jajka ♦ Uszka|
|Maginot Girls Academy||Éclair ♦ Fondue ♦ Galette ♦ Madeleine ♦ Colombier|
|Count High School||Noemi Kohiyama ♦ Anna Masukura ♦ Nachigami Sisters ♦ Marina Constantinescu ♦ Mizuki Ikarashi|
|Tategoto High School||Aung|
|Maple High School||Trout ♦ Amber ♦ Oleo|
|Kebab High School||Bosphorus|
|Bellwall Academy||Tiger I Crew||Emi Nakasuga ♦ Hitomi Yuzumoto ♦ Kita ♦ Takami ♦ Nagisa Shiratori|
|Jagdpanther Crew||Neko Yamamori ♦ Yano ♦ Koharu Sakai ♦ Kanbara ♦ Hirono|
|Elefant Crew||Chifuyu Doi ♦ Terauchi ♦ Wakasugi ♦ Kunihiro ♦ Nogata ♦ Enami|
|T-44 Crew||Youko Minami ♦ Saionji ♦ Azuma ♦ Hokuto|
|Panzer II Crew||Kashiwaba Sisters|
|West Kureouji Grona Academy||Kiri Shiratori|
|All-Stars University Team||Alice Shimada ♦ Azumi ♦ Megumi ♦ Rumi|
|Japan Sensha-dō Federation||Ami Chōno ♦ Shiho Nishizumi ♦ Renta Tsuji ♦ Chiyo Shimada ♦ Shichiro Kodama ♦ Kikuyo Idegami ♦ Kanon Sasagawa ♦ Hibiki Inatomi ♦ Remi Takashima|
|Non-Affiliated||Yoshiko Akiyama ♦ Jungorou Akiyama ♦ Hisako Reizei ♦ Shinzaburo ♦ Yuri Isuzu ♦ Chihiro Yusa ♦ Boko|