Peridot (specifically Peridot Facet-2F5L Cut-5XG) is a member of the Crystal Gems who made her debut in "Warp Tour". She was originally a Homeworld Gem technician and a certified Kindergartner. After being stranded on Earth following the events of "Jail Break", she acted as a recurring antagonist until establishing a truce with the Crystal Gems in "When It Rains" to help them save the Earth from the Cluster. She officially became a member of the Crystal Gems in "Message Received", after she defied and insulted her Homeworld superior, Yellow Diamond. Peridot is currently living at the barn with Lapis Lazuli.
Role in the series
Initially, Peridot was shown to be morose, ruthless, calculative, biased and shows no remorse when it comes to killing as shown in "The Return" when she nearly killed Steven and the Crystal Gems. She is skilled with Advanced Gem technology and works for the Homeworld Gems as a skilled technician and takes her work seriously, crushing one of her Robonoids underfoot when it was damaged and useless to her in her first appearance during "Warp Tour". In "Marble Madness", she briefly interacts with Steven, questioning him about the current state of the Earth before losing interest and attempting to crush him. When the Crystal Gems intervene and reveal themselves, Peridot is shocked and flustered as she was not aware of the presence of other gems on the Earth. Peridot also seems to be a bit stubborn. This is shown when she realizes that the Crystal Gems were the ones that have been destroying her equipment, she quickly loses her temper and asks "Why do you keep destroying my things?!".
After "Jail Break", Peridot became increasingly frantic in her attempts to contact Homeworld and stop the Crystal Gems interfering with her mission, as she realized that the Cluster will emerge and when it does, it will obliterate all life on Earth. In "Keeping it Together", for example, when flying away with her helicopter fingers, she smiles down and laughs hysterically, and her facial expressions are exaggerated throughout the episode. In "Cry for Help", Peridot interrupts Crying Breakfast Friends! and all other television signals with her own broadcast from the Communication Hub begging Yellow Diamond to rescue her.
In "Catch and Release", Peridot kidnaps Steven with the hope he'll be able to fix the Homeworld Warp. When he couldn't, Peridot became hysterical and eventually breaks down with the realization she is stuck on Earth with the Cluster. Before she can elaborate, the Crystal Gems arrive and disarm, poof, and bubble her. After reforming into her natural self with no armor, Peridot is rather diminutive, and she becomes very juvenile and paranoid, assuming that harmless household items are "weapons" and that hostility drives every action from the Crystal Gems. However, once comforted by Steven, she becomes much more relaxed and cooperative, although she still refuses to cooperate with the Gems and sequesters herself in Steven's bathroom.
Peridot is very naive when it comes to Earth, especially when the information is not relevant to her mission. She was unaware of the existence of rain or thunderstorms, believed that Steven was a member of a species called "Stevens" because that's what he called himself, and in "Catch and Release", she believed Steven's bathroom to be an archaic think chamber and almost everything in the bathroom to be a weapon. Curiously, she is familiar with the scent of citrus fruit despite her general ignorance of Earth. She is also socially oblivious as she tends to offend all of the Crystal Gems at some point due to her keeping to the Homeworld social hierarchy. Despite her overall unawareness of Earth, she has said that she finds organic life fascinating and is willing to defend the planet from the Cluster and Yellow Diamond.
Peridot has been shown to be incredibly stubborn, as it takes several attempts from the Crystal Gems for Peridot to discuss even the Cluster. Often when working, Peridot insists things be done her way and despises compromising. When she does cooperate, it typically takes some persuasion from Steven. She also continues to keep her log, despite the task being a moot point, more or less for a sense of normalcy. She also is vocal and honest about her viewpoints and will bluntly state what is on her mind regardless of the audience. Her statements have put her in harms way on several occasions, whether by the Crystal Gems or her Homeworld superiors. She does take responsibility for what she says and has learned how to keep some of her more offensive opinions to herself. Her recent behavior around the Crystal Gems has shown that she has opened herself up to new ideas and beliefs.
Peridot is incredibly dedicated and somewhat possessive, occasionally to the point of obsession. She becomes visibly upset when she discovers that others have damaged her things and is emotionally attached to her mechanical foot, as it is her only remaining part of her limb enhancers. Peridot is also loyal towards people she respects, as she was driven to complete her mission and return to Homeworld despite no contact from Yellow Diamond and has been shown to cling to Steven when she is scared. However, after realizing that now she is stuck on the Earth without any form of escape, she decides to betray Homeworld and destroy the Cluster with the help of Steven and the Crystal Gems. In "Message Received", after managing to contact Yellow Diamond and pleading for the Earth to be spared, she realized her perspective of her leader has changed, and she saw her as the cruel and callous tyrant she is. Peridot then rebels against Yellow Diamond's wishes, cementing her loyalty to the Crystal Gems.
Peridot still clings to the Homeworld's social dogma. In "Back to the Barn", Peridot acts very condescendingly towards Pearl due to her position in Homeworld's caste system as a made-to-order servant. She refuses to acknowledge Pearl's skill as a technician for this reason. After a competition between self-built robots, however, Peridot concedes that she may have been wrong. In "Too Far", Peridot shows a strong aversion tofusion, similar to Jasper, referring to Garnet as a "permafusion", and in "Catch and Release" she refers to Garnet as a "filthy war machine" due to the Homeworld belief that fusion should only be used for combat. Peridot has also stated that Garnet makes her "incredibly uncomfortable". Peridot does try to appeal to Amethyst's favor, as she sees Amethyst as the closest thing to a "normal" Gem, by getting her to laugh despite Peridot being incredibly socially oblivious and unfamiliar with the concept of humor. Peridot does feel bad when she unknowingly hurts Amethyst's feelings but is confused until Steven explains it. Peridot has a difficult time apologizing for her behavior but is willing to. It is shown in "It Could've Been Great" that while she likes to follow the rules she gets slightly excited when she breaks them (e.g. sitting in an elite Gem's seat.) During her time with Steven and the Crystal Gems, she begins to realize that Homeworld's philosophy is very flawed, and she defects as a member of the Crystal Gems. She admits to having some lingering feelings over Homeworld in "Gem Drill". She reveals that while she had made peace with her decision to defect, it is very difficult to give up her old emotions of her past life.
Peridot is extremely self-absorbed, which leads her to continually underestimate the Gems. Even after defecting to aid the Crystal Gems, she thinks mainly of her needs. Many of her childlike behaviors, particularly her temper and arrogance, stem from her over-inflated ego. This is not to say Peridot is incapable of putting others above herself; she is just not used to having others who are willing to do the same for her. The same behavior extends to her admitting something personal. As she spends more time on Earth, Peridot has started developing a more gracious and compassionate attitude.
Peridot prioritizes logic, reason, and objectivity above emotions, while also displaying natural curiosity and a great desire to learn and understand. She is great at problem-solving as she uses her observations and experiments to make a conclusion, though her experiments are sometimes ill-conceived. Peridot feels that a practical and systematic approach is the correct way to do things while thinking the Crystal Gems are insane for relying on their emotions, particularly when they chose to relax despite imminent danger. Her logical mind tends to put Peridot at odds with the rest of the Gems and has caused her difficulty with communicating. Peridot's reasoning abilties led her to contact Yellow Diamond in an attempt to persuade her to protect the Earth but ultimately decided to betray Homeworld. When a cause is important to her, Peridot can be just as emotionally charged as the rest of the Crystal Gems.
Peridot has been shown, repeatedly, to be somewhat underhanded in dealing with the issues that arise around her. Rather than deal with the Crystal Gems head-on, Peridot typically dealt with them with various traps or simply running away. Peridot has even gone as far as kidnapping Steven in order to fix the Homeworld Warp. Her deceptive tendencies have not gone away during her time with the Crystal Gems, as she smuggled a Diamond Communicator of the Moon in an attempt to spare the Earth, and disregarded Pearl's wishes for there not to be a blaster on the cluster drill. Despite being incredibly shifty actions on her part, Peridot's intentions were well meaning and ultimately done to help. Since "Gem Drill", Peridot has displayed solid loyalty to the Gems. In addition, she has become a bit more open and clear about her feelings since becoming a Crystal Gem in "Message Received".