Daniel Sims

Daniel Sims lives in Dunt, South Australia, which is the only fictional location in We Can Be Heroes and is based on the town of Lara, Victoria. He is 17 years old, and largely a parody of rural, country people. He lives with his mother; his hearing impaired twin brother, Nathan; and his two younger brothers and a sister. His father died in a car crash many years ago.

Daniel was nominated for Australian of the Year for donating one of his eardrums to his near-deaf brother, Nathan (also played by Lilley). As he does not know sign language, Daniel uses different methods to talk to Nathan, such as screaming at him, or using coloured cards. These cards have different meanings, including "change the Xbox game" or "piss off".

Both Daniel and Nathan, as well as their friends, enjoy rapping and beatboxing. After his hearing was partially restored, Nathan's beatboxing skills improved greatly.

Daniel was a winner for the state finals, but he did not want to wear a suit or make a speech. However, he later changed his mind when he discovered he would be able to legally buy porn and fireworks in Canberra.

Daniel and his family, along with his mother's boyfriend, regularly feature in Lilley's series Angry Boys, which highlights the lives of the twins.

Ja'mie King

Ja'mie King lives in the North Shore of Sydney, New South Wales, but was born in South Africa. Ja'mie is a 16-year-old girl and has sponsored 85 Sudanese children for Global Vision (a fictional organisation parodying World Vision International), which gave her the National Record. Due to her work of raising money, Global Vision decided to make her the 'face' of their organisation. Ja'mie also does the 40 Hour Famine twice a week which she says not only helps raise money but "keeps [her] looking hot".

Ja'mie is the 'popular' girl in Year 11 at Hilford Girls' Grammar School, a private school on Sydney's North Shore. She and her group of three friends are very superficial, caring only about their looks. Ja'mie's friends all support her claims to have been in the finals of "Dolly Covergirl of the Year". Ja'mie serves as a parody of the stereotypical wealthy and snobby North Shore private school girl. Ja'mie and her friends enjoy sleepovers and gossiping, as well as modelling and the arts.

She is even featured in a school assembly to promote the work of Global Vision where she makes the school repeat after her in the Sudanese language what Sonali told her when they parted at the Detention centre where Sonali is staying. "Balumbo Shamanaka" when translated in English says 'You are very beautiful girl'. She scolds the school for misusing their money telling them that each dollar they do not donate equals one dead child, and that they should convert their school oval into a "mass grave" because of the money the school accumulated from food sales at the canteen.

Two weeks before the Australian of the Year finals, Ja'mie is informed that a flood has hit 'her' village, killing all but two of her Sudanese children. She displays apparent displeasure and is shown to have a very short temper when she argues with the manager of Global Vision and then accuses her mother of not offering her support.

In the episodes, we are shown one of the Sudanese children she sponsored named Sonali. Sonali apparently has illegally entered Australia and is held at the Villawood Immigration Detention Centre. In one episode, Sonali apparently writes a letter to Ja'mie telling her that she is in Australia and asking Ja'mie to visit her. Ja'mie is sceptical at first but soon realises that this visit will bring a lot of media attention, so she invites one of her friends along because she 'is good at taking photos'. Ja'mie even takes Sonali along to Canberra for the finals and lends Sonali her Year 10 Formal dress to wear for the occasion.

Ja'mie appears in Chris Lilley's subsequent TV series Summer Heights High and Ja'mie: Private School Girl.

Pat Mullins

Pat Mullins lived in the suburb of Nollamara in Perth, Western Australia, was 47 years old, was married to Terry and was the mother of two children. As an adolescent, she developed skeletal dysplasia of the femur resulting in one leg being shorter than the other. In order to move around more quickly, she developed the ability to roll along the ground at high speeds.

Terry built Pat a training course, featuring various terrains and obstacles for her rolling. Her ambition was to roll from Perth to Uluru, although she experienced some injuries and setbacks during training, including having a gumnut lodged up her nose.

In the last episode, it was revealed that Pat died of liver cancer on 12 January 2006, 23 days after the announcement of Australian of the Year. She never completed her roll to Uluru.

Phil Olivetti

Phil Olivetti is the Queensland nominee, who in fact nominated himself for the award; he is a self-obsessed 37-year-old, from Bray Park in Brisbane. He used to work for the police force until he saved 9 children from an unsecured jumping castle that was about to crash into power lines. After that, he quit his job and tried to start a career in motivational speaking. He had plans to write an autobiography and sell merchandise. He soon became obsessive about winning the prestigious award, inviting a man on the judging panel to a barbecue to flaunt his Australian spirit and later attempt to bribe him unsuccessfully.

In the midst of his attempts to secure the award, he also tried to become involved in his son's Scouting troop through his motivational speaking course, which was based on how to deal with (unrealistic) emergency situations, such as escaping from Al Qaeda snipers. In his first and only demonstration, Phil attempted to show the troop what to do if stuck underneath a tree through the efforts of terrorists. A young boy named Jeremy volunteered to help Phil, but quickly regretted it when the tree's safety rope snapped, leaving him trapped and suffocating under the huge object. Phil tried to violently remove the tree only to inflict more pain on the scout and necessitate medical assistance. He then lamely comments that Jeremy was 'a wuss'.

Despite his enthusiasm, Phil was eventually informed that he had not made it into the state finals. In a fit of anger, embarrassment and possible denial, Phil lied about the situation to his family, leading to their going to Canberra regardless. When he tried to enter the finals, however, he was firmly asked to leave by security. His attempts to bribe the guards with a thousand dollars simply created an incident, causing his wife to expose his deceit. A bitter argument ensued ending with his family deserting him, leaving Phil to watch with utter contempt as the Queensland finalist was announced.

Three months after the announcement of Australian of the Year, Phil is still married and decided to quit motivational speaking and rejoined the police, but is also working on a miniseries about the jumping castle incident and other "situations" he got into, in which he will be played by Vince Colosimo.

As a reference to the film Chopper, Phil constantly compares Vince Colosimo to Eric Bana who was his on-screen rival in the film.

Ricky Wong

Ricky Wong is a 23-year-old Chinese physics student who lives in the suburb of Wheelers Hill, Melbourne, Victoria. He is often exuberant and tells his colleagues that "Physics is Phun" and that they are in the "Wong" laboratory. This is largely a vehicle for parodying the stereotypical "Chinese overachiever", or model migrant. He has achieved fame for his work in solar energy by developing a highly efficient solar energy panel, but his passion lies in acting. Ricky's dream is to become a professional actor. His father, however, does not want him acting and says that he should complete his physics degree after he finishes "Indigeridoo", a musical about indigenous Australians in which Ricky plays the main role: Walkabout Man. The production portrays many famous and well-known indigenous people, including Cathy Freeman, Deborah Mailman and Lionel Rose.

Once Ricky completed his PhD, he went to work for the CSIRO – his father had already secured him a job there. However, he soon became depressed, and much to his father's anger announced he was going to act full-time,