Characters and Representations of District 9

Wikus

His representation at the start is that he is a bit of a Geek and a pen pusher. Through the mise-en-scene you can see this as he wears stereotypical clothes that a 'geek' would commonly wear- a sweater vest, shirt and tie with his hair styled to the side sprayed onto his head using gel. Wikus is married to the daughter of the boss of the MNU, this shows that the only way Wikus has got this job is due to nepotism. He can be represented as a hero in parts of the film however not throughout. He helps Christopher get to the smaller ship (where his son is) that will take him up to the mothership which will enable him to go and save his people and then fix Wikus. Wikus could be considered the donor at the end of the film as he gives Christopher the fuel to go back to the mothership. He could also be considered as the helper when he is defending Christopher and son when they start the ship and go back to the mothership. 

Christopher

Christopher is the true hero of the film as he is the one who goes and wants to save and help his people. He can also be seen as a religious character  as through his actions and the mise-en-scene he resembles Christ. Christopher wants what is best for his people/ species and you hear him in the film talk to Wikus about helping him after he saves his species first. This conversation is captured using a wide shot to show Christopher and Wikus talking about using fuel to return to Christophers birth planet where he can help Wikus. When the two are in the government building, Christopher is captured using a wide shot as he looks at a Prawn who has been killed and is an experiment which the humans have been looking at. Close-up/ mid-shots are used to capture the humans/ army people shooting towards Wikus and Christopher but Christopher is captured using a wide shot as he looks down at the dead Prawn. The bullets miss Christopher suggesting a miracle by God/ he resembles Christ. 
The scene where you see Christopher and his son fly off to the mothership a low angle is used to capture the smaller ship on its way to the mothership. Through the miss-en-scene you see that the ship is in the shape of a cross which also resembles Christ. 

Tania 

Tania is Wikus's wife and also is Wikus's boss's daughter- this is how Wikus got the job at MNU.
In terms of Todorov's folk tale theory, Tania is represented as the 'Princess'.

Christopher's Son 

In District 9 Christopher resembles Christ within the narrative, also making his son a religious character. In terms of Todorov's folk tale theory, Christopher's son would be considered the helper as he assists his father throughout the film, when preparing the ship and helping Wikus.