|Behind the scenes|
Taylor is the human host of Sub-Visser Fifty-one, who is Visser Three's second-in-command on Earth. Both Taylor and the Sub-Visser's personality and sense of identity were combined into one, with both halves viewing themselves as one identity, causing the Sub-Visser to identify herself as Taylor as well.
- "I'm a voluntary, do you not know that? This girl, this human, chose this life, chose to invite me in to take control! Why? Why? Because she'd seen humans as they truly were. She chose us over her own people. [...] When I... when she walked down the hall at school, there wasn't a boy who didn't dream she was his. Not a girl who didn't wish she were her. She was homecoming queen. Tennis champion. Student-body president. She was the princess, and the school was her court."
- ―Taylor/Sub-Visser Fifty-one and Tobias
Before she became Sub-Visser Fifty-one's host, the human Taylor was once the homecoming queen, tennis champion and president of the student body at her school. She described herself as a princess and the school as her court, until she was horribly burned and lost an arm and a leg in a house fire. She survived, but was disabled and disfigured. With the loss of her beauty, she lost her popularity among her former friends and was shunned.
From her hospital bed Taylor was approached by members of The Sharing, who offered her the ability to regain what she had lost through their advanced technology if she joined them. Taylor took the deal and was granted her wish, but at an enormous cost: to relinquish control over her own body and betray Earth and humanity. Thus, she became the host body for Sub-Visser Fifty-one.
- "This girl, this Taylor person, this insignificant injured girl wasn't my goal, of course, I was a sub-visser, I was slated for a host who held a vital position. My mother, the chief of police. I betrayed her, of course. Helped them take her involuntarily. I didn't want her, the older woman. I wanted these memories. I wanted the life I knew would be mine when the Yeerks, when my people, had repaired the body. And now, I am beautiful once again."
- ―Sub-Visser Fifty-one and Taylor to Tobias
Little is known about the life of the Yeerk holding the rank of Sub-Visser Fifty-one before she infested Taylor. She had one host before Taylor, a Hork-Bajir. She distinguished herself enough during this time to be promoted to sub-visser rank. Originally she was slated to infest Taylor's mother, the chief of police in that city, and infested Taylor only as a means to that end. But she became infatuated with Taylor's memories and her life before the accident. She wanted that life for herself. So she kept Taylor as her host and allowed a lesser Yeerk to take Taylor's mother. Her ruthless efficiency elevated her to become Visser Three's second-in-command in this part of space.
- "She hit the red circle again. I screamed. Screamed and screamed. My wings trembled, uncontrollable. My beak jerked wildly. Talons clutched at nothing. My bowels failed and I fouled myself. Indescribable pain. Staggering pain. Pain that ate into me, chewed at my guts, twisted every nerve ending. Had to make it stop. Had to make it stop!"
As Visser Three's first lieutenant, Taylor was Chapman's superior and oversaw the Anti-Morphing Ray project. When Tobias was captured, Visser Three assigned her the task of interrogating him. To break the will of her captive bandit Taylor used a torture device similar in construction to the anti-morphing ray, a device possibly built by the same scientists. The device controlled emotion and physical sensation, allowing Taylor to induce extreme pain at the touch of a button. Tobias was able to resist this torture by using his red-tailed hawk instincts, allowing them to take over as a hawk could not be driven insane like a human. Realizing what Tobias was doing, Taylor used the device to induce pleasure, knowing that a bird could not know pleasure. Her brutal strategy worked, and Tobias broke, but was too weak for Taylor to hear his confession. Also, since Tobias is a hawk nothlit, Visser Three was convinced the AMR was a failure and had its two creators killed. The rest of the Animorphs soon arrived to rescue him and Taylor held her own before fleeing with Tobias, intending to finish him off and throw him into the Yeerk pool. During this time she witnessed Tobias morphing despite having passed the two-hour limit, but no longer cared about anything but killing him. Rachel saved him and intended to kill Taylor for what she had done, but Tobias stopped her, allowing Taylor to escape.
Brokering a Deal
- "Nice to hear your voice again, Andalite. The Andalite with the power to stay in morph for more than the two-hour time limit. Your voice brings back such sweet memories. I learned a lot about you during our time together, Andalite. I saw your mind. I saw your courage dribble away. I would enjoy finishing you now. Breaking you. Right here and right now. You think you're strong, but I know you're weak. It would take seconds! But this time, Andalite, it's your cooperation I require. I need you and your fellow Andalites. I need you to help me destroy Visser Three."
- ―Taylor to Tobias
The Animorphs believed Taylor would be executed by Visser Three for losing her prisoner, but against all odds, Taylor somehow survived. She convinced Visser Three to give her another chance and bided her time, waiting to act. When Tobias was injured saving a boy Taylor made her move, capturing him and bringing him back to a base of operations she'd chosen for that purpose: an old trailer parked by a junkyard, far from the city and the Yeerk pool. She used this base to create the ruse that she had been demoted and disgraced, and now wanted the help of the Andalite bandits to remove Visser Three from power. Her true target was the Yeerks of the peace faction, who all fed in the pool on Saturdays. She planned to use the bandits to strike a blow against the peace movement, killing two birds with one stone. When her plan went awry, Taylor opted instead to just destroy the bandits in a natural gas explosion, claiming that even if her own body would be destroyed in the blast she, the Yeerk within, would survive. She was last seen blown away by the gas laughing and her final fate is never revealed.
- "It's all about contrast, don't you think? That's the way life is, eh? You don't know pain unless you know pleasure. You don't know what it is to be strong unless you've been weak, isn't that right, Andalite?"
"I don't know. Let me know... if you ever become strong."
"You think I'm weak now? I have you in my power, Andaiite. You call me weak? No. No, I was weak. Now I'm strong. I know the difference. And when you submit, you will know the difference, too."
- ―Taylor/Sub-Visser Fifty-one and Tobias
'Prior to her infestation, Taylor was once a kind-hearted girl despite having a perfect life. This was supported by Tobias' discovery when morphed as her for the first time and described her form being filled with "gentleness, fear, and joy", with very little cunning or hatred. Sadly, following the fire that scarred her physically and mentally, she became emotionally compromised leading to her becoming the voluntary host of Sub-Visser Fifty-one in exchange of being restored to her former beauty albeit to some degree, which further costed her mental state as she ended up developing superiority complex via. her Yeerk's influence.
Sub-Visser Fifty-one by contrast, a ruthless and ambitious psychopath who seemingly sympathetic towards her host's plight. But owing to her sadistic mindset through excessively torturing Tobias and own share of mental instability and superiority complex (latter which flowed into her host), such feeling could be interpreted as a form of delusion more that even her could possibly let on. Following Animorphs' success in ruining AMR experiment, Sub-Visser Fifty-one became consumed by her vendetta against Tobias that she subsequently took total control over Taylor's body.
- Taylor is described as being 'a couple of years' older than Rachel.
- After the events of The Illusion Sub-Visser Fifty-one severed collaboration with her host.