Ringo Brown is a fictional character from the Australian soap opera Neighbours, played by Sam Clark. Clark was given the role after he entered and won a Dolly magazine competition. He made his first screen appearance during the episode broadcast on 24 January 2007. Ringo's storylines have included his ongoing battle with an eating disorder, a bus crash, a relationship with an older woman, the collapse of a warehouse roof at an illegal dance party and his on-off relationship with Donna Freedman (Margot Robbie). In July 2010, it was announced that Clark had decided to leave Neighbours. He filmed his final scenes at the end of the month and Ringo made his last credited appearance on 1 October 2010, but was killed off-screen in the next episode.

In 2006, Australian teen magazine, Dolly, held a competition offering two readers a chance to win a three-month contract with Neighbours. Dolly received 7,000 entries for the competition. Clark auditioned with his best friend, Tim Phillipps, who went on to play Fox, the figment of Paul Robinson's (Stefan Dennis) imagination. Clark subsequently won the competition, along with Adelaide Kane (Lolly Allen), and he was signed to a three-month contract to play the part of Ringo Brown. Compared with other Neighbours cast members who were cast through more traditional casting processes, Clark ultimately went through a longer audition process, auditioning four times before being cast, compared to the two auditions most cast members were required to go through. The process included a taped audition, a closed audition with the casting director at a Westfield's, acting alongside a cast member on a public stage at a Westfield's, and finally the final five auditioned on set. On his audition Clark said "I really didn't think I'd have any chance of getting anywhere. Apart from trying to do something a bit different with the script, I kept mine pretty simple". Two days after the audition he was told he had the part, and started filming one and a half months later. Just before his debut episode aired, Clark's contract was extended from the three months to nine months. Clark remained with the show for over three years.

In 2009, it was announced that Clark would be taking a three-month break from Neighbours to focus on his music career. When Clark returned to filming in February 2010, it was announced that he would perform one of his songs for departed character, Bridget Parker, played by Eloise Mignon.

In his fictional backstory, Ringo is the youngest in a line of siblings named after The Beatles. As a child, Ringo idolised his older brother George and was distraught when he left home and changed his name to Frazer Yeats (Ben Lawson), leaving Ringo alone with their small-minded parents and elder brother Johnny. Ringo resented his brother for leaving and desperately wanted to become a part of Frazer's cool, new world. When his first episode went to air, Clark described Brown as "a good-hearted kid, he doesn't want to hurt anyone, and he does the normal things that a 16-year-old kid does". Clark later went on to explain that Ringo has "basically left home and come to live the life his brother is living", he also added that Ringo is a typical boy next door. Network Ten describe Ringo as someone who had "often drawn the short straw in life". He is not an academic, but he is clever at reading people. Ten said "he's a good boy at heart, but he isn't averse to bending the rules to score a win. With the world at large he's cocky, cheeky and good-humoured". They added that when he gets a crush on a girl, he is left nervous and is likely to say the wrong thing.

One of Ringo's biggest storylines saw him develop an eating disorder. A writer for Holy Soap said that this is one of the first times in a soap opera that a male character has been at the centre of such a storyline. Ringo had suffered with anorexia in the past and he later had a relapse. Ringo refuses to admit that he has a problem with his addiction to losing weight. He almost drowns in a school swimming race due to lack of food and this leaves him feeling bad about himself. Rosetta Cammeniti (Natalie Saleeba) catches Ringo taking appetite suppressants, which leaves her upset by the situation. Clark said that until that moment, Ringo had concealed his problem from everyone but Pepper Steiger (Nicky Whelan). He added "Even Pepper thought he had the issue under control, but this is where it all comes to a head." Rosetta confronts Ringo and he is embarrassed and takes his anger out on her because he has been struggling with his problem for a long time. During an interview with Last Broadcast, Clark said that he believes guys are going through the same insecurities as girls, where they want to look like their heroes, such as soccer stars. He added that he was able to deal with the storyline because a close friend had suffered from anorexia. He also appreciated the time dedicated to the subject on the show. Clark later said that as eating disorders are on the rise among males, he believed the storyline was "realistic." On whether the storyline would carry on, Clark said "The only drawback was giving it the attention it requires. Because of the limitations of storylines, it would have been impossible to continue with this subject for too long. In reality, of course, eating disorders can continue for years." During a 2008 interview with TV Week Clark named the eating disorder storyline as his favourite storyline on the show so far. He also called it the hardest storyline because he had to really focus and get involved in it.

In 2007, Ringo began a brief relationship with the much older Carmella Cammeniti (Natalie Blair). They share a kiss in a swimming pool during their siblings' pre-wedding celebrations at Lassiters Hotel. Ringo had fancied Carmella for a while and Carmella had just ended her relationship with Oliver Barnes (David Hoflin). Of Ringo's reasons for his crush on Carmella, Clark said "She treats him like an adult and in a completely different way to how Rachel treated him. Then there's the fact that they get along really well together". When Ringo discovers that Carmella is starting to feel the same way about him, he lets her know that he senses her interest. Blair said that her character gives into Ringo advances because she is in an "insecure place". She also said "Ringo makes her feel wanted and appreciated – he's constantly saying wonderful things to her". Carmella thinks that it is a bit of fun, something she has not had in a while. Blair added "I think she's using him to make herself feel better". Clark said that the new relationship is embarrassing for Carmella and because Ringo is "so head-over-heels" for her, he does not mind when she asks him to keep quiet about it. Carmella later ends the relationship with Ringo, but he cannot accept it is over. At Sky Mangel (Stephanie McIntosh)'s farewell party, Ringo declares his feelings for Carmella in front of everyone. Carmella is then forced to tell him that she was never in love with him. Clark said he felt sorry for his character and called the situation "the ultimate embarrassment for him". Ringo then decides to leave town with his mother, Clark said "He just feels so embarrassed and as though he doesn't fit in anymore in the street".

Ringo and Donna Freedman (Margot Robbie) marry as part of the 25th anniversary celebrations. Clark was delighted with the storyline stating: "It was really lovely. Their relationship has been on and off over the past couple of years, so it was a nice culmination of that. It's great to see them rock solid now. The wedding was filmed on location and Clark said it was more meaningful than any studio or tiny church. Clark also had the least amount of filming to contribute to the storyline, whilst others characters spent whole days filming. He branded Donna as "the bride from hell" during the preparations. The wedding drew comparisons to the previous wedding of Scott Robinson (Jason Donovan) and Charlene Mitchell (Kylie Minogue).

In July 2010, Clark announced that he was to leave the show to concentrate on his music career. He filmed his final scenes at the end of the month. On his departure, Clark said it was one of the hardest decisions of his life. He added "I've been working on music for a very long time now and it was getting too hard to fit the two together and do them to the level I wanted. I feel as though the decision is right but that doesn't make it any easier". Clark said Ringo's departure from the show was a "decent send-off" and he hoped that Ringo would be a "character who is remembered for years to come". When he was asked if the door was open for his return, Clark said it was up to the script writers.