Money is no doubt a very important part of our lives. We can even go as far as to say that we cannot live without money. In our society, money is essential for survival. However, money can never buy everything.
Firstly, money cannot buy happiness. Although I cannot deny the fact that money can buy you a life of luxury which many people would tend to enjoy, you may have to spend all your life trying to earn the money to continue enjoying the luxury. You may have an infinite amount of money, but if you do not have the time to spend it, to enjoy life, then money is worthless to you.
Secondly, money cannot buy true friendship. It may seem that we are able to attract many “friends” as long as we have money, but if one day, you lose all your money, these “friends” will start to leave you.
Lastly, money cannot buy us more time. We may be able to “buy” some time by spending more money to take a taxi and arrive at our destination faster than taking a bus, but the total amount of time that everyone has in a day will still remain the same.
Money can satisfy many of our material needs, but it will never be able to buy everything.
Appa(voiced by Dee Bradley Baker) is a ten-ton flying bison. He is also Aang’s animal companion. Appa is the main mode of travel for the group.
Momo(also voiced by Dee Bradley Baker) is an intelligent and curious winged lemur that travels with the group, after Aang found him in the Southern Air Temple. Momo is good friends with Appa.
Jet(voiced by Crawford Wilson) is a charismatic teenager who has a deep grudge against the Fire Nation. He is the leader of the Freedom Fighters.
Long Feng(voiced by Clancy Brown) is the intelligent and cunning Grand Secretariat of Ba Sing Se(the capital of the Earth Kingdom), head of the Dai Li secret police, and adviser to the Earth King. He manipulates the Earth King, and thus has control over the Earth Kingdom.
Mai(voiced by Cricket Leigh) is an impassive 15 year old girl. She is a friend of Princess Azula, accompanying the princess to capture the Avatar. Mai has a relationship with Zuko. She is skilled in throwing weapons.
Ty Lee(voiced by Olivia Hack) is a cheerful and energetic 14 year old girl. She is also a friend of Azula, joining her in her quest to capture the Avatar. Ty Lee is a gymnast whose specialty is pressure point striking which can block the chi flow in the body’s extremities, essentially paralyzing them or stopping them from element bending.
Suki(voiced by Jennie Kwan) is the 15 year old leader of the female Kyoshi Warriors. She is Sokka’s first love interest in the series.
Yue(voiced by Johanna Braddy) is the 16 year old princess of the Northern Water Tribe. In the end of season one, she sacrifices herself to restore the Moon Spirit. As a result, she becomes the Moon Spirit herself. Yue is Sokka’s second love interest.
Avatar Roku(voiced by James Garrett) is the Avatar before Aang. He appears occasionally to guide Aang. Naturally, according to the Avatar Cycle, Roku was born to the Fire Nation.
Fire Lord Ozai(voiced by Mark Hamill) is the ruler of the Fire Nation. He is the father of Zuko and Azula, and younger brother of Iroh. When his father, Azulon, died, he took over the throne of the Fire Nation. Ozai is a ruthless man. If it wasn’t for Zuko’s mother, Ozai would have killed Zuko long ago.
Zhao(voiced by Jason Issacs) is a hot-tempered Fire Nation admiral. Sokka had an accurate description of him as having “big sideburns, bigger temper”. Zhao is responsible for the siege of the Northern Water Tribe as well as having killed the Moon Spirit temporarily. It is mentioned that Zhao has little self control. At the end of season one, Zhao was killed by the vengeful Ocean Spirit.
Aang(voiced by Zach Tyler Eisen) is the 12 year old protagonist of the series.(Chronologically, he’s 112 years old, having been frozen in ice and sustained in the Avatar State for 100 years.) Aang is the current incarnation of the Avatar, and also the last remaining Airbender. Aang’s energetic nature and childish naïvete sometimes render him oblivious to the world around him, as well as the feelings of others. It is revealed that he has a crush on Katara.
Katara(voiced by Mae Whitman) is the 14 year old Waterbender who discovers and frees Aang from the iceberg that he was trapped in for a hundred years. She is the only remaining Waterbender in the Southern Water Tribe. Katara is kind, responsible, and particularly motherly; she developed this personality after her mother was killed in a Fire Nation attack. Though an apt leader, she can be overbearing and stubborn. In spite of her kind nature, she also has a temper. When her idealism and impressive Waterbending skills are combined with this temper, she can be quite destructive. Katara is the only one who can calm Aang out of the Avatar State. 
Sokka(voiced by Jack DeSena) is a 15 year old warrior from the Southern Water Tribe. With his sister Katara, he accompanies Aang on his quest to defeat the Fire Lord. Sokka describes himself as “meat-loving” and “sarcastic”. Unlike his sister, he is not a Bender. However, Sokka is skilled with a boomerang. He takes great pride in his mental and physical strength, though it is often overshadowed by others’ ability to bend. He is extremely clever, relying on science where the mystical and martial arts elude him. His immature manner often causes others to underestimate his intellect.
Zuko(voiced by Dante Basco) is the 16 year old banished prince of the Fire Nation. The most defining aspect of his appearance is a scar over his left eye, which he received during a forced 
Iroh(voiced by Mako in seasons 1 & 2, Grey Baldwin in season 3 onwards) is a retired Fire Nation general. Being the elder brother of Fire Lord Ozai, Iroh was the original heir to the throne. He is a powerful Firebender, known to many as The Dragon of the West. Iroh looks upon Zuko as a son more than as a nephew, especially after the loss of his own son, 
Azula(voiced by Grey DeLisle) is the 14 year old princess of the Fire Nation. She is Zuko’s younger sister, as well as one of the major antagonists in the series. Cruel and self-centered since youth, Azula is manipulative, sadistic and a self-admitted monster. It is said by Fire Lord Ozai that Azula was born lucky, whereas Zuko was lucky to be born. Being a Firebending prodigy, Azula is the only Firebender shown to be capable of producing blue flames. She is also one of the few Firebenders to have the ability to generate lightning. 
Toph Bei Fong(voiced by Jessie Flower) is a 12 year old blind Earthbender. She also claims to be the most powerful Earthbender in the world(which is rather true). Toph makes her first appearance in the second season(in episode six: The Blind Bandit), where she leaves her wealthy family to teach Aang Earthbending. Though blind, Toph “sees” with Earthbending; she feels the vibrations in the ground through her feet. Using this method, she eventually learns how to bend metal, a knowledge which may be unique to her. Due to overprotective parents, Toph has lived a largely sheltered life; this makes her somewhat selfish and sarcastic. She does not hesitate to speak her mind, and is bluntly truthful.
In the Avatar State, the Avatar is at his most powerful, and most vulnerable. If the Avatar is killed in the Avatar State, the reincarnation cycle will be broken, and the Avatar will cease to exist.
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