David 7 is smart and resourceful, able to avoid being recycled despite working with the utterly incompetent Trexel. On the surface, David just seems a little snarky, but has a deep well of despair and rage which they sometimes fall into.
Due to being left alone the majority of the time (and sometimes for the purposes of survival), David 7 has a number of hobbies, including:
- David's Fact Corner, an audio blog 
- coding 
- eating paper 
- figurine creation 
- watching wrestling
- beat poetry 
- working out 
- running David's Place
David 7's skin produces a slimy substance, which results in oily hair. David 7, and likely all clones, are able to blush . There is a tiny barcode inside one of David's eyes. It is used to tell clones apart . Trexel has described David's eyes as "tiny" David wears the slick, hydrophobic, gray onesie provided by the company. It has been described as "like a featureless boilersuit" . As of season 2, David is rather muscular, and strong enough to kick through a metal wall, having "washboard abs".  However, David's size cannot change due to the physiology of clones, which may also be responsible for clones' inability to grow chest hair.
David 7 as created from an experimental design variant on the standard David clone. David is given a Matrix-style lesson in management and design module before being plunged headfirst into the world of planet designing a mere 7 hours after being born.  Despite a lack of experience, David assists Trexel Geistman in designing some of his best (but still very bad) planets during their first week together.
David is able to exploit a glitch and create an I.M.O.G.E.N. account with universal permissions. Unable to leave the office, David uses this account to learn about the outside world and run an illicit audio blog called "David's Fact Corner" as a way to relax.
David becomes increasingly aware that Trexel's unreliable work ethic and general awfulness are a threat to both the success of their planet designs and Davd's continued existence, and sabotages the office pipes using programming skills picked up from I.M.O.G.E.N. This prevents the briefs from being submitted properly. After Trexel leaves for the day, David retrieves the briefs, reworks them, and uses universal permissions to alter the time codes so that they appear to have been submitted on time.
Trexel eventually realizes something is amissand brings Harry in to inspect the office. As they submit the latest brief, the altered pipes are discovered and Trexel has the office reset. He leaves with the “tainted” brief and David is unable to do anything as they miss the submission deadline.
The next day, David is allowed to leave the office for the first time--to be put on trial in the Justice room. Line manager Hartro Piltz acts as prosecutor while Trexel serves as defense lawyer. David is accused of tampering with the tubes, missing a deadline, and having an audio blog. Hartro recommends immediate recycling.
Trexel attempted defense is swiftly destroyed by Hartro's character assassination. David is found guilty and set to be recycled when Trexel brandishes the employee handbook. David is technically Trexel’s property and it states that, in cases of property confiscation, a consultant has the right to "invoke swapsies" and switch it out with other property of equal value. Trexel offers his access to the Cosmic Lounge and I.M.O.G.E.N. approves the trade, sparing David’s life.
Once the trial is over, David confronts Trexel about the fact that he could have invoked swapsies all along and still allowed the trial to take place as an excuse to show off. Despite this, David thanks Trexel, being aware of how important the Cosmic Lounge was to him.
After Trexel reveals that he can still go to The Astral Bar, David snaps and beats him up with a fish.
David 7 tries to adjust as fast as possible to the change, and trains under Trexel in sales, under the impression that this will give him formal qualifications. It will not.
When David learns about the reasons behind Trexel's feelings about clones, he gets (rightfully) upset and tells him off for treating him this way because of his own emotional trauma. from then on, David's revolutionary leanings only build, stating that he believes his life to be meaningless and that he could die at any second. This is only exacerbated by Hartro's attempt to kill him and Trexel.
He no longer gives Trexel any kind of leeway, and is incredibly moody and prone to anger. He spends a lot of his time questioning how and why things are done, especially when it comes to Standards, who visited him and alluded to "big plans" for him.
David begins building muscle mass via exercise and very quickly is strong enough to hurt Trexel (much to his distress) and damage Stellar Firma property. This aids him when he eventually has a meltdown after another visit from Standards and hearing that his clone comrades have programmed in subservience.
He destroys the brief they were given, and loudly announces his feelings on The Board, and begins making demands. I.M.O.G.E.N. attempts to shoot him, but her ammunition is empty, and David punches through the now encroaching wall and pulls Trexel in with him to the vent, to make their way towards the Complaints Office.
As he and Trexel traverse the vents, they meet Enola, which further discourages and angers David toward the human residents of Stellar Firma. When they reach the Filing department, David comes to the sickening discovery that Stellar Firma is a husk that is slowly decaying as a result of a CPU failure, and everything that doesn't make the company money has been de-prioritized. He discovers the dead body of another clone, and gets very upset.
At the end of the season he is trapped in Filing with Trexel.
David and Trexel are hiding from the Board. David begins running a café, David's Place. As of Episode 51, he had been staying there for a week and a half. He attempts to give Trexel a job here as a plongeur (or "sink chancellor", as he calls it) but Trexel never shows up, instead trying to get David to work at the Department of Planetary Public Permits and Bribery. Soon Hartro locates him and Trexel and gets them to come with her. Because of this I.M.O.G.E.N. incinerates David's Place.
David is Trexel's assistant, and has gone through stages of genuine hatred of him (even pondered killing him). He is at his wit's end with having to put up with him, although he does bring Trexel along with him into the vents, and admits to Enola that they are partners. It seems as if David is at least somewhat fond of Trexel, because he continues to perform small acts of kindness for him (like making Lucy, or offering him a job.)
David has a crush on Bathin despite never meeting him and only hearing Trexel's biased anecdotes. He has crocheted and drawn several erotic renditions of Bathin, and looks up photos of him on I.M.O.G.E.N. This crush is something of an "unhealthy obsession" according to I.M.O.G.E.N., as upon gaining access to a recording of Bathin giving a speech, David watched it eighty-four times in a row.
David and Hartro were set at odds from the start, as David is supposed to act as Trexel's assistant, so Hartro is frequently in the position of punishing him as a way of punishing Trexel. They sometimes bond over seeing Trexel in pain, but David does not like or trust her given her behaviour in the past and her self-centered motivations.
I.M.O.G.E.N. and David have a stronger bond than most others in the show. She often makes extra effort to protect him and give him special privileges, as well as showing him affection. David calls her Mummy and appreciates her unwillingness to hurt him, making her possibly David's favourite entity on Stellar Firma.
Enola initially made a good impression on David, being another person with a hatred of Trexel and critiscism for Stellar Firma, but David was disappointed to learn about the hopeful yet completely unhelpful work Enola was doing, although they did see him as a person, which is more than can be said for most.
- David 7 is capable of swallowing paper and excreting it undamaged
- David 7 is different to other clones in that he had his subservience protocols turned off and has more access to I.M.O.G.E.N. than he should have
- David's ideal look is jorts, a bowtie, a high collared jacket, and literally nothing else.
- David seems to enjoy creating art, as he writes beat poetry, draws, and crochets. Many of these artistic endeavors are done to try to portray Bathin.
- David 7 does not subscribe to gender as he exists outside of society and has no connection to human gender. He describes himself as "David" when asked, and I.M.O.G.E.N. also recognises his identity.
- David 7 always knows what time it is, due to internal clone time.
- David 7 does not bleed. It is uncertain if this is typical of all clones or just Davids.
- David 7 has a disdain for socks ever since they were first explained to him. He sees them as a stupid waste of fabric.
- David likes dinosaurs because he has sympathy for an underdog.
- David 7 reads pornography magazines for the articles.
- Due to his near entire life spent inside small rooms, David is incredibly agoraphobic and becomes distressed in wide open spaces.
- As of Episode 48, David can kick and punch with a force of approximately 20-23 US tons . For reference, an average human can punch with a force of ~7 pounds, or 0.0035 US tons. 
- According to Tim, if David were an animal he would be a slightly emaciated/concussed crane (poised, spindly, gangly, unsure. Could be beautiful if it weren't for its many injuries)
- His current density is 21,450 kg/m^3; about 21 times denser than the average person.
- David likes to stay active, preferring to start up his own café and devise a business plan rather than just sitting around. This is most likely due to how he has spent the majority of his life.
- As of Season 3, David has a significant amount of money.
- Episode 4 - Bowels and Dogs https://play.acast.com/s/stellarfirma/4c69064b-a8b5-4156-b9fc-30a7713a3f2b
- Episode 25 - Trials and Termination (acast)
- Episode 17 - Cardinals and Comfy Chairs https://play.acast.com/s/stellarfirma/55af951b-c9f3-4efa-a2d0-5023715cb9c6
- Episode 28 - Deities and Determination https://play.acast.com/s/stellarfirma/a94f12e2-7a92-4a0c-829c-3637c503c969
- Episode 29 - Commerce and Candy (acast)
- Episode 36 - Spies and Subterfuge https://play.acast.com/s/stellarfirma/20ae75b7-5e30-47bf-a97f-3c96b7b61fe8
- Episode 23 - Wrangling and Wrestling
- Episode 38 - Muscles and Moral Egotism (acast)
- Episode 46 - Gonk and Grandiosity (acast)
- Episode 42 - Push Ups and Privilege https://play.acast.com/s/stellarfirma/b7d6d2ae-2ad7-48c4-a6fd-b649083be99d
- Episode 7 - Trash and Mysteries (acast)
- Episode 12 - Denizens and Goobrication (acast)
- Episode 48 - Faces and Aces (acast)
- Tim Meredith (twitter.com)
- I.M.O.G.E.N. Internal Log - Filtered partial transcript (acast)
- Episode 1 - Troughs and Goo (acast)
- Episode 5 - Fear and Feet (acast)
- Episode 3 - Gods and Trousers (acast)
- Episode 49 - Vain Attempts and Vent Descents (acast)
- Episode 21 - Literature and Life Lessons (acast)
- Episode 45 - Cages and Connivance (acast)
- Episode 27 - Sales and Schooling (acast)
- Episode 50 - Foreshadows and Filing (acast)
- This assumes that the metal wall of the expedition room / vents is about the same gauge as the wall of a swimming pool (14 gauge) (irvansmith.com) (americanmachinetools.com)
- Season 2 Q&A