Template:OWFoster

Foster is one of the main characters in Happy Tree Friends Fanon: Our World!. Foster was the first main character introduced in the series. Foster serves as the group's smartest and most serious member.

Pysical
Foster possesses shoulder length thick, gray, curly hair that is formally layered, icy blue eyes, and pale skin. She's a slender woman with an athletic physique and toned body that is considered to be shaped like an hourglass. She's also shown to be very tall standing at 6'2". This makes her the second tallest character, only being shorter than Howdy. She's also shown to have an above average sized bust size and fairly large posterior. According to her creature, she was modeled after a comic book heroine.

Attire
Foster wears business attire including a red blazer with a white collar and cuffed sleeves, gray high heels, as well as a black skirt. During spy missions, Foster sports a dark grey catsuit with black accents, gloves, and boots. Also present is a golden belt adorning an arsenal of gadgets.

Personality
Foster is an extremely skilled, intelligent, and athletic spy. She comes off as an overprotective, motherly figure who will go as far as to kill others to assure the safety of those she cares about. Sometimes, she goes out of her way to protect others leading to her death. Next to being a spy, she suffers from major depressive disorder which exaggerates her extreme evasiveness. Due to this, Foster is not likely to socialize with others and normally keeps her identity a secret. Foster is especially incompatible with characters that tend to cause mischief or threaten the lives of others.

Foster is not likely to kill anyone unless she is on a mission of sorts. In the past, her primary job as a spy was to terminate all C.R.U.E.L Agents. Eventually, her team was captured, but she managed to escape to Happy Tree Town and stayed hidden. The trauma that took place there was too much for her, worsening her depressive state. Some time later, she mustered the courage to protect as many lives there as possible despite the risk of exposing her identity. Along with being hunted down by the C.R.U.E.L Agency, Foster's social anxiety hinders her from establishing sound relationships with others. She chooses to avoid others simply by reflecting on her past: Everyone she grew close to, or even loved, were taken away or killed.

Foster is a victim of depression due to witnessing trauma and developing several phobias. She is also under a lot of pressure as spymaster of the F.I.G.H.T Agency resulting in stress. As a result, she is not very likely to socialize, but she takes the time out to do various other activities to relieve stress. She achieves this by engaging in strenuous events, mainly extreme sports, and will usually track C.R.U.E.L Agents, train, exercise, or compete in athletic events during her free time. Foster's deaths will most likely be the result of her plans backfiring, saving others, or being caught off guard. They usually involve explosions or lacerations to her head or torso.

Trippy
Trippy is shown to have an immense crush on Foster. Often flirting with her or making sexual jokes to her. While Foster does care for Trippy very much, she doesn't like him in the same way he does to her. Throughout the series, Trippy will often say inapropriate or perverted things to Foster as way to hit on her. And she shuts him down every time.

On Foster's side, she sees no romantic interest in Trippy. She sees him as a friend and nothing else. At times, Foster will see him as annoying and a bother. Often rolling her eyes when he speaks to her in such preverse ways. Other than that, she is shown to care very deeply for Trippy, even saving his life in Spy See What You Did There.

Zelena
Zelena and Foster are shown to very close and depend on each other a lot. Zelena has been shown to assist Foster on her F.I.G.H.T. Agenecy Missions along with Howdy. Their relationship has been shown to be very sisterly as well. Even Zelena's children call Foster "Aunty Foster". They're also shown to share very deep secrets with one another as Zelena only told Foster that she used to be Clesta.

Trivia

 * Excluding Robo Star being a non-human, Foster is the oldest member of the group being 28 years old.
 * Technically, Foster is the tallest member of the group. She's always seen wearing her high heels. When she's in heels, she stands at 6'5". Beating Howdy who stands at 6'4".
 * She suffers from Depression.
 * Her favorite color is red.
 * When asked about what kind of music Foster listens to, her creator said Foster listens to anything of the Neo-Classical genre.
 * Her theme song is "The Porcelain Sea" by Chris McBane.
 * She was the very first character introduced in the series.
 * Her body measurments are B40" W27" H40".
 * She always wears pink lip gloss.