r of the Crystal Gems. Rose is described as having "given up her physical form to bring [Steven] into the world" as the first Gem-human hybrid; her rose quartz gemstone is embedded in his navel. At the time of the show's narrative, he is 13–14 years old, but appears younger (due to the interaction of his gem's magic with his aging process). Steven is caring, protective, brave, gentle, quick to make friends and forgive others, and eager to help the people he loves with their problems; his optimism is often a source of strength for the other Crystal Gems. His gem gives him a wide range of magical abilities; one of the long-term story arcs of the series is his progress in learning about and mastering these abilities, beginning in the first episode with his first successful attempt to summon his "Gem weapon", a shield. Other long-lasting character arcs involving Steven include his anxiety about filling his mother's place in the Crystal Gems and living up to her example, and his developing friendship with his human best friend, Connie.

Crystal Gems'in şu andaki disiplinli lideri, Garnet dörtlünün en güçlüsüdür. Sessiz, dirayetli ve pragmatiktir. Steven onu "gizemli" olarak nitelendirir, She is quiet, stoic, pragmatic, and described by Steven as "mysterious", but over the course of the series she becomes more emotionally open, especially in expressing her love for Steven. According to the writers, her great self-confidence is reflected in the fact that she never asks questions. She possesses red garnets embedded in her hands, from which she summons her Gem weapon, a pair of heavy gauntlets. She also has a precognitive ability she refers to as "future vision". Garnet has three eyes, over which she wears a visor.

In the first season finale, "Jail Break", it is revealed that Garnet is a fusion of two smaller Gems named Ruby and Sapphire. Garnet's existence is thus a personification of Ruby and Sapphire's loving relationship — she describes herself as "a conversation" and "made of love" — and her personality is a stable blending of Ruby and Sapphire's traits. The character of Garnet has won acclaim from critics as a representation of a queer relationship. Though she is normally stoic, Garnet's strongest emotional displays are often centered around fusion: anger and revulsion at what she perceives as abuses or perversions of fusion, and delight when Steven develops the ability to fuse. The second-season episode "The Answer", a flashback showing how Ruby and Sapphire met and formed Garnet for the first time, was nominated for an Emmy Award and adapted into a children's book.

The youngest of the Crystal Gems until Steven was born, Amethyst has a rebellious and hedonistic personality. Her mischievous sense of humor often provides comic relief, and her fun-loving and relatively childish nature bolsters her friendship with Steven. Her amethyst gemstone, from which she can summon a whip, is embedded on her chest; she also makes frequent use of shapeshifting capabilities. Late in the first season, Steven learns that Amethyst (unlike the other Crystal Gems) was created on Earth as part of the Gem Homeworld's "Kindergarten" project to convert Earth into a Gem-occupied world; later on, Amethyst herself learns that the Kindergarten produced her malformed, smaller and weaker than other Gems of her type (the "Quartz warrior" caste). Her irreverent personality masks deep-seated feelings of inadequacy, resentment, and fear that the other Crystal Gems do not respect her; a long-term character arc involves her learning to respect herself and her capabilities.

Designed to resemble a ballerina in her slender build, costume, and graceful style of movement, Pearl is a short-tempered, precise, intellectual strategist. Her gemstone is a white pearl embedded in her forehead, with which she can summon a spear and create holographic images. She is the most overtly motherly and protective toward Steven of the Gems. Late in the second season, it is revealed that, on the Gem Homeworld, pearls are a "made-to-order" servant caste; but Pearl has rejected her caste role and trained herself to be a capable fighter and technician. Pearl harbored a deep romantic devotion to Rose Quartz, which has led to lasting grief over Rose's absence and jealousy over her relationship with Greg; major character arcs for Pearl include her slowly learning to cope with and move beyond these emotions. Critical response to Pearl has largely appreciated her portrayal as a complex, sympathetic, yet flawed queer character.

(Tom Scharpling tarafından seslendirilen)Steven'in babası, Greg eski bir rock şarkıcısıdır; şu anda karavanında yaşamakta ve Beach City'de bir oto yıkama işletmektedir. Steven'in öykü boyunca Gem'lerle birlikte yaşamasına rağmen, Greg onun yaşamında varlığını sürekli korumaktadır. Greg Gem büyüleri konusunda rahatsız olsa da Steven'in maceralarını kabullenmekte ve desteklemektedir. Greg'in Steven'a anlattığı öykülerden oluşan bir flashback bölümler dizisinde, Greg'in bir turne müzisyeniyken Beach City'ye yerleşmek ve Rose Quartz'la romantik bir ilişki sürdürmek için kariyerini nasıl terk ettiği gösterilmektedir.

(voiced by Grace Rolek) Steven's closest human friend, Connie is introduced as an intelligent, introverted, and lonely person in the early episode "Bubble Buddies", and she rapidly develops a close relationship with Steven. An avid reader of fantasy literature, she admires what she calls Steven's "magical destiny" and is eager to be a part of it; her increasing involvement in Gem adventures is a long-term plot arc of the show, including learning to fight with a sword belonging to Rose Quartz and coming to see herself as Steven's equal despite not having magical abilities of her own. Another character arc involving Connie is her learning to push back against her strict and overprotective parents.

(voiced by Matthew Moy and Kate Micucci)Employees at the Big Donut, the donut shop that Steven frequently visits. Lars is inconsiderate, irresponsible, and abrasive, but insecure and desperate for the friendship of those he considers to be the "cool kids"; Sadie is friendly and supportive toward Steven. Despite Lars's negative attitude, Steven considers Lars a close friend, and Sadie has a crush on him. Lars and Sadie's intermittently affectionate and antagonistic relationship is a recurring focus of episodes in which both characters feature. Matthew Moy has stated that Lars is one of his favorite acting roles, and has described his character as a "complicated fellow". According to Rebecca Sugar, Lars and Sadie are based upon characters she created while in college. They appeared in both the pilot episode of "Steven Universe" and the first episode of the series proper; they are the only characters other than the Crystal Gems to have speaking roles in either of those episodes.

(voiced by Jennifer Paz) – At the time of her introduction, Lapis Lazuli is a Gem from Homeworld who has been trapped in a magical mirror on Earth for thousands of years. When the mirror is given to Steven in the first season, she forms a friendship with him, but she initially mistrusts the other Crystal Gems and attacks them upon being freed by Steven. As the first sentient Gem other than the Crystal Gems to appear in the series, Lapis's appearance sets the stage for deeper plot developments and is cited by the show's writers as "really the beginning of the show". In "Jail Break", the first season finale, she prevents the Homeworld Gem Jasper from attacking the Crystal Gems by fusing with her and imprisoning themselves at the bottom of the ocean. After being released from the fusion in "Super Watermelon Island", the first episode of the third season, her character arc in her intermittent appearances has involved recovering from the psychological trauma of having been imprisoned and having been part of an abusive fusion. She has extremely powerful telekinetic control over water, and can produce wings made of water from the lapis lazuli gemstone embedded on her back.

(voiced by Shelby Rabara)In her introduction, Peridot is a technician dispatched by the Gem Homeworld to check on remaining Gem installations on Earth; her appearance late in the first season becomes an ominous sign that the Crystal Gems are under threat from Homeworld. Stranded on Earth after the events of the first season finale, Peridot becomes a recurring antagonist in the first half of the second season, until she is eventually captured by the Crystal Gems; she then chooses to ally with them to defuse the "Cluster", a Gem "geo-weapon" placed by Homeworld to destroy the Earth. When the Crystal Gems first encounter her she wears technological "limb enhancers", giving her a fearsome and robotic appearance; when she is captured, she loses them and appears childlike without them. She plays a prominent role in the last part of the second season, during which her character arc centers around learning to outgrow the hierarchical, utilitarian mindset of Homeworld and appreciate the value of friendship, individuality, and life on Earth. She is cranky and self-aggrandizing in demeanor, but demonstrates willingness to learn from her mistakes and attempt to treat others with greater respect and kindness. Her gemstone is a triangular peridot embedded in her forehead, and she discovers in the third season that she has the ability to telekinetically control metal objects.

(voiced by Kimberly Brooks)A powerful fighter and veteran of the ancient war against the Crystal Gems on the Homeworld side, Jasper is introduced at the end of the first season, assigned to accompany Peridot to Earth. She is openly contemptuous of those she perceives as weak or defective and takes pride in her status as the ideal Gem soldier. Her gemstone is a yellow jasper in the place of her nose, and her Gem weapon is a heavy helmet. As a perfectly formed Quartz warrior, she becomes the target of Amethyst's resentment and desire to prove herself. Although