This is a character list of the Taiwanese television series The X-Family, which aired between August 8 and October 23, 2007.

The Xia Lan Xing De Family (夏蘭荇德 家族)

Xia Xiong (夏雄) Full name: Xia Lan Xing De Xiong (夏蘭荇德‧雄).Blood status: Pure-blood.Age: 43 years old.Aura: Red.Position in the family: Mother of Xia Yu (夏宇), Xia Tian (夏天), and Xia Mei (夏美).Status: Alive.Fighting Points 11500+.Actress: Pauline Lan (藍心湄).

Biography: As the sole bread winner in the family and owner of a truck company, she takes on the roles that traditionally belong to fathers and sons.

Wanting a normal life: Despite her tough exterior, she desires the closeness and comfort of a normal family life.

She wants her children to lead normal lives, so she sealed Xia Tian and Xia Mei's powers with a pair of "Feng Long Tie" (封龍貼 / Seal Dragon Patch) since they were young. Of all her children, she worries about Xia Tian the most. His closeness with his father upsets her because she does not want her son to follow his father's footsteps in becoming a musician. But he eventually convinces her to let him pursue his dream when he sings her favourite song while kneeling outside their house to beg for her permission.

Hobbies: She loves to cook, but most people are repulsed by her cooking because she makes the worst food and would do anything to avoid eating it. The only people who enjoy her cooking are Demon Hunter, Jiu Wu and herself, which explains why she doesn't stop making food even though everybody else protests.

Love life: She divorced Ye Si Ren because he was irresponsible as a father and unfaithful as a husband. But though her marriage fell apart years ago, she still loves Ye Si Ren and desires his company. When Ye Si Ren reveals his identity as a member of the evil Ye He Na La Family, she finally expresses her true feelings and the two of them become closer than before. But obstacles don't stop coming in-between them from there; First, they learn that Han (Xia Tian's girlfriend) is Ye Si Ren's long lost daughter, thus ruins their plan to reconcile their marriage. Secondly, Ye Si Ren's father uses her ex-husband and her son Xia Tian as pawns to take over the world and she is forced to fight back the constant obstacles coming for them. And finally, Xia Xiong gets trapped in "Shi Kong Jia Feng" (時空夾縫 / separate-dimensional wall) and her loved ones almost forgot about her in the process. But after going through these obstacles, the two finally end up together.

Nicknames: Because of her manly personality, people usually refer to her as "Xiong Ge" (雄哥 / Big Brother Xiong). People including her father Xia Liu, her ex-husband Ye Si Ren, and her eldest son Xia Yu.

Aside from her average nickname, she also has three other nicknames; Xia Mei calls her "Lao Mu Da Ling" (老母達令 / Mummy Darling), and Xia Tian calls her "Lao Ma" (老媽 / Mom) and finally Lan Ling Wang calls her "Fu Ren" (夫人 - Madam), a title she is highly amused of.

Specialty: In the initial episodes, she wears a metal glove called "Qilin Shou" (麒麟手 / Qilin Glove) to cast a family spell called "Qi Lin Mai Chong Guang Tao Can" (麒麟脈衝光套餐).

Later, she uses a gun named "Wu Feng" (烏風 / Zaocys), which was given to her by the God of Guns years ago. It is powerful enough to kill any evil entity and to temporarily transfer the combined power of 99 spirits trapped in the gun to a person who is completely pure in heart and mind with the help of the Great Traveler. While the God of Guns can access the gun's full potential, she can only access 30 percent of its powers.

Xia Tian (夏天) / Gui Long (鬼龍) Full name: Xia Lan Xing De Tian (夏蘭荇德‧天).Blood status: Half-blood (Pure & Dark).Age: 17 years old.Aura: Green/Gold (Ultimate Iron Man).Position in the family: The middle child of the three siblings.Status: Deceased (presumably).Fighting Points: 13000 (16000+ as Gui Long), (50000+ as Ultimate Iron Man).Actor: Jiro Wang (汪東城) - Fahrenheit (飛輪海) / Dong Cheng Wei (東城衛).

Biography: Xia Tian (Summer in translation) is a sweet kid with a good heart, but he often gets taken advantage of due to his naivety. Though he is born with powerful abilities, he dislikes using them.

Dreams: He dreams to follow his father's footsteps and become a musician, an idea his mother strongly opposes to initially. But he convinces her to allow him to follow his dream, and then becomes the lead singer of Dong Cheng Wei (東城衛).

Destined for greatness: Since he made little effort in controlling his powerful but unstable abilities, a "Feng Long Tie" (封龍貼) was placed on his neck making him no different from a "Ma Gua" (麻瓜 / Muggle). Xiu believes Xia Tian has the potential to become a "Zhong Ji Tie Ke Ren" (終極鐵克人/ Ultimate Iron Man), a savior of worlds, so he taught Xia Tian to play guitar and control Gui Long (鬼龍 / Ghostly Dragon) - his evil half with greater power, who on several occasions, attempts to destroy Xia Tian in order to become the dominant personality. But although they are enemies, they have once come together to fight against Zack, their evil counterpart from the Bronze Dimension. Despite Xia Tian's inability to control Gui Long, his mother made him the guardian of the Xia family heirloom, the "Feng Long Ka" (封龍卡 / Seal Dragon Card), a mini disk containing everything about "power-users" (異能行者). In order for Xia Tian to become Zhong Ji Tie Ke Ren, he must find the five original power-users of wind, fire, thunder, lightning and rain (原位異能行者) and collect their elements. In the end, he succeeds in collecting the five elemental powers and becomes the legendary Zhong Ji Tie Ke Ren.

Love life: His biggest motivation for developing his power and guitar skills is Han, a girl he met when he was a child and has liked ever since. To save her life, he rushed into "Mie" (滅 / destruction) to rescue her trapped soul and was willing to trade his soul for hers. When they both safely returned to the human world, their love blossomed, but not without trials. First, his father told him Han was his half-sister. They were forced to separate and treat each other with indifference. Then, he found out Han was part his paternal grandfather's conspiracy to dominate the world. But the good news is that he and Han are not related and the two finally get a happy ending.

Nicknames: Xia Mei calls him "Xiao Ge" (小哥 / Little Big Brother).

Ren Chen Wen sometimes calls him "Tian Ge" (天哥 / Big Brother Tian) along with Xia Mi and Wa Ge, however, he is more common to call him "Wo De Tian Ge" (我的天哥 / My Big Brother Tian).

His evil half Gui Long sometimes calls him "Xiao Tian Tian" (小天天 / Little Tian) to mock him.

Specialty: As Gui Long: When he takes off the Feng Long Tie, he transforms into Gui Long and becomes unable to control his actions. But thanks to Xiu, he learns a spell to help him control Gui Long. Eventually he becomes strong enough to suppress him without using the Feng Long Tie. Gui Long's main weapon is the guitar pick "Gui Long Pi Ke" (鬼龍鎞克 / Gui Long Guitar Pick) as his weapon, into which the Feng Long Ka is embedded. His notable, yet lowest ability is to impregnate people through a simple kiss (this implies boys as well). Those who fall victim will become pregnant, smile crazily and be flirtatious for three days before the effect wears off.

Gui Long disappears when the Master, his paternal grandfather, executes his plan to dominate the world, causing half of his powers to disappear along with Gui Long. Gui Long's disappearance makes Xia Tian the dominant personality.

As Zhong Ji Tie Ke Ren: When Xia Tian finally becomes Zhong Ji Tie Ke Ren, he becomes able to cast all kinds of spells that were previously used and can use the legendary guitar "Tie Ke Wu Ji" (鐵克無極 / Iron Limitless) as his primary weapon and also uses the Feng Long Ka as his guitar pick.

Alternate counterparts: Xia Tian / Gui Long has three alternate counterparts introduced throughout the Zhong Ji series: In the Gold Dimension: Wang Da Dong the leader of Zhong Ji Yi Ban (終極一班) from the first series KO One (終極一班). In the Bronze Dimension: Zack a well-known psycho killer sent to the Iron Dimension in attempt to make Xia Tian stronger from the second series The X-Family (终极一家). In the Silver Dimension: Sun Ce the student-body president of Jiangdong High School (江東高校) and Sun Shang Xiang's older brother from the third series K.O.3an Guo (終極三國).

Xia Tian and Da Dong share a similar ability in being able to vary the level of their own powers to their opponent's. It is no doubt that Zack might share this same ability as well.

Xia Yu (夏宇) / Gui Feng (鬼鳳) Full name: Xia Lan Xing De Yu (夏蘭荇德‧宇).Blood status: Half-blood.Age: 20 years old.Aura: Light yellow.Position in the family: The eldest of the three siblings.Status: Alive.Fighting Points11000 (18000+ as Gui Feng)Actor: Danson Tang (唐禹哲).

Biography: Xia Yu (sounds like "raining" (下雨) in some ways) rarely worries his mother. As a student majoring in law and finance at National Taiwan University, he is great with money and handles the family budget, and is also a money-lover. He always cooks and takes care of his younger siblings during his mother's absence.

Secret wishes: Despite being the person everyone trusts and relies on, he resents being the only "Ma Gua" (麻瓜) in the family and doing the menial jobs around the home. His resentment grows when he finds out that his mother had given the "Feng Long Ka" (封龍卡) to Xia Tian instead of him, the eldest son, because of his Ma Gua status. Evil sees his jealousy and uses that to turn him evil by giving him a ring to absorb other people's powers. The ring unwittingly unlocks Xia Yu's sealed power. As it turns out, he is not a Ma Gua by birth. Rather, his father secretly sealed his power upon birth because he exhibited the pure evil genes. When he fully comes into his powers, his dark instincts start to take over. The situation forces his father to use "Xi Hun Qu" (洗魂曲 / Soul Cleansing Melody) to cleanse his soul and seal his power again.

Coming into his power: Xia Yu's powers remain sealed until his paternal grandfather's plan to take over the world backfires causing a beam of dark energy to strike directly at him, turning him into "Gui Feng" (鬼鳳 / Ghostly Phoenix), who is the "original power-user of fire" (火的原位異能行者). Gui Feng is so powerful that not even a "Feng Long Tie" (封龍貼) can suppress him completely. But since his element is needed to help Xia Tian become "Zhong Ji Tie Ke Ren" (終極鐵克人), they cannot strip his powers away. His family eventually finds a way to contain Gui Feng by using "Bing Gu Zhou" (冰箍咒) to cool his fire, which gives Xia Yu the time that he needs to learn how to control Gui Feng.

Although Gui Feng is more powerful than Gui Long, he appears to be not as arrogant as he was and sometimes shows a caring side though he tries to hide it.

Because demonized power-users can convert other people's powers into their own, there is a possibility that Gui Feng is actually the reincarnation of Gui Long, since both have similar personalities. Plus there is a fact that whoever falls victim to the Soul Cleansing Melody will receive a different type of supernatural abilities if he ever regains powers.

Love life: Although Xia Yu does not have any real love interest in the story, he has once fallen for the Fire Ant Girl, a demonic assassin that his paternal grandfather sent to attack his family and got caught by his maternal grandfather. He learns the ant-language so as to communicate with her and to interpret for the others and he truly cared for her. However, their relationship breaks after she is killed by Xia Tian's evil counterpart, Zack.

Nicknames: Xia Mei often calls Xia Yu "Shi Li Gui" (勢利鬼 - meaning something similar to Snob) as well as "Si Ma Gua" (死麻瓜 - meaning "Stupid Muggle" but directly translated to "Dead Muggle").

Xia Tian calls him "Lao Ge" (老哥 / Big Brother).

Ren Chen Wen, Xia Mi and Wa Ge call him "Yu Ge" (宇哥 / Big Brother Yu).