Will Smith plays himself as the main character of the show. As said in the theme song his mother he was sent to Bel-Air because he got in a fight. He is the main character and is all of the episodes. The whole story line revolves around him. Will is a care-free Gangster style character. He is often shown being a very good basketballer. He is not interested in studies. THe character of Will has a close relation to the character Carlton who are complete opposites.
Carlton Banks is played by Alfonso Ribeiro. Carlton Banks is the son of Phillip and Vivien Banks. He is a very serious and hard-working character. Although he is serious he is often seen breaking into a dance. He attended Bel-Air prep and left wirh straight A's unlike his cousin Will. He amied to attend Princeton University and was probably the heir to the Bank's fortune. This is assumed because he is the eldest son and the oldest child(Hilary) has no interest in studies so Carlton is the next apparent heir. He has no interest in sports and is often teased by Will because of his height. He again is in all the episodes and with Will is debatebly the main characters.
Uncle Phil/ Phillip Banks
Phillip Banks is played by James Avery. He is husband of Vivan Banks and is father to Hilary,Carlton,Ashley and later Nicki Banks. He is a succesful lawyer and is proud that he has made all of his money on his own. He has tried to run for Judge but failed. Phillip Banks is a strict man and is often yelling at Will. Even though he is strict he cares about the whole family. He is very overweight and is often the victim of fat jokes from the family. He supplies the whole family with everything they need.
Aunt Viv/ Vivian Banks
Vivian Banks is played by Janet Hubart-WHitten in the first three seasons and in the last three by Daphne Maxwell Reid. Vivian Banks is the character who changes the most through out the seasons. In the first few series she is a very strict dictator like mother who is focused on her career. Later it told that she herself was a high-school dropout who went to might-school to get her PHD. After having her last child Nicky she became a house wife/ Stay at home mom. She was often shown missing her dancing days when she attempts to go back to dancing. She gets very happy when her three sisters come and visit.
Vy Smith is played Vernee Watson Jackson. Vy Smith is the mother of Will Smith and the sister of Vivian Banks. We are often told that she did not have a proper child-hood as she had to raise her 3 sisters and Will. She was the one who decided that Will should leave Philidelphia and got to Bel-Air to get a proper educatioin. Her first marrage was to Lou Smith ( Will's Father). He is only shown once in the whole series. Vy smith later marries a man called "Mr Wilkes". This is when she changes her name to Vy Wilkes-Smith.
Geoffery Barbara Butler is played by Joesph Marcel. He is the butler to the Bank's family. He was originally from England as an Olympic runner but left the country in shame as he was caught cheating. This is when he became a butler. He serves the Bank's family and often mutters about how the family treats him with no respect. In an episode when the family goes on a holiday Geoffery has a massive party in the Banks mansion. He is often called "G" by Will. Geoffery consitently makes fun of Phillip Banks weight as it is the only revenge he can get. He has been caught saying that he hates the family but in contrast often does deeds that help them.
Hilary Banks is played by Karyn Parsons. She is the oldest of the Banks Children but is the least intelligent of them (excluding Nicky). She is self-obssesed and a 'snob'. She compares herself to the likes of Whitney Houston. She was engaged to a man named Trevor but he later died. Hilary Banks dropped out of ULC and started making apperances on talk-shows. This gave made her to become the weather presenter. After this she was given a talk show called 'Hilary'. At the end of the show her talk show is moved to New York.
Ashley Banks is played by Tatyana Ali. She is the third child of the Banks family. Unlike her brother and sister she is not as self-centered. At first in the series she is shown to have no real talent. Later as she becomes older it is shown that she has become rebelious (due to Will's influence). Later she is offered Modeling jobs and her singing talent is shown. At the end of the series she decides to attend a New York creative art school and stays with her sister Hilary who lives in New York.