Stuart Bloom is the owner of The Comic Center of Pasadena, the comic book store the guys frequent. Stuart is a talented artist and graduate of the Rhode Island School of Design.
In Stuart's first appearance on the show, he asked Penny out on a date. Before his second date with Penny, Stuart asked for Leonard's advice on dating her. Leonard, feeling threatened by Stuart, gave Stuart bad advice. Although Stuart and Penny's second date went fine, when they were getting romantic Penny mistakenly called him "Leonard", putting an end to their relationship.
Stuart has also shown a romantic interest in Amy. When Amy visited the comic book store, Stuart inquired about her relationship status and they later agreed to go out on a date. A jealous Sheldon interrupted their date at the cinema to ask Amy to be his girlfriend, although Stuart still finished the date and walked Amy home.
Although the guys appreciate Stuart's personal touch when buying their comics, it doesn't seem Stuart is well rewarded for his job. Stuart has made frequent mentions of the fact the store is struggling and that he now has to live there. Stuart has revealed he works 70 hours and clears an average of $1.65 per hour. When Penny asked for advice on comic books, Stuart told her not to own a store that sells them. Stuart has felt threatened by a competing comic book store, Capital Comics, whose rude boss is a jerk to him.
When Howard was in Space, Stuart become close friends with Raj and began hanging out with the gang. Before accepting Stuart as a member of the gang, Sheldon quizzed him on his education and only allowed him to be in the group as "fake Wolowitz". When Howard returned from space, Sheldon initially wanted to dismiss Stuart from their group. Sheldon relented when Stuart offered him a 30% discount at the Comic Center.
When Stuart's comic book store burnt to the ground in an accidental fire that was definitely not started for the insurance money, Howard offered Stuart a live-in role caring for his recently injured mother. Despite the job involving humiliation, degradation and verbal abuse, Stuart enjoyed taking care of Mrs. Wolowitz and developed a close bond with her. Stuart's friendship with Howard suffered as he lived with Mrs. Wolowitz, with Howard thinking Stuart was mooching off his other.
When Stuart re-opened his comic book store, Howard learnt the news that his mother had passed away. Stuart was deeply appreciative of Mrs. Wolowitz for taking him in after his comic book store burnt down. Since Mrs. Wolowitz's death, Stuart has continued to live at Mrs. Wolowitz's house, even as Howard and Bernadette even moved in.
Howard and Bernadette tried to ask Stuart to move out, but they lost their nerve when they learnt it was Stuart's birthday. Stuart eventually moved out of Howard and Bernadette's house after living there for almost two years. Despite their initial excitement to be free of their house guest, Howard and Bernadette realized they missed having Stuart around.
After Stuart and Raj were caught using Howard and Bernadette's hot tub when they were supposed to be away, Stuart admitted that he never returned his key. When Bernadette was pregnant, Stuart revealed that he had been evicted from his apartment. Howard told Bernadette he thought having Stuart stay with them would be a good idea given they'll need all the help they can get when their child is born. Stuart moved back into Howard and Bernadette's house, helping them with chores and taking care of Halley.
When Bernadette invited her new co-worker, Ruchi, to go out for drinks, Howard sensed an opportunity to try fix up his single friends - Raj and Stuart - by sending them along to the bar without asking Bernadette. After Stuart and Raj showed up at the bar, they both flirted with Ruchi and tried to impress her. Later, Stuart and Raj argued over who should drop out of the "race" to court Ruchi, with neither wanting to be the one to walk away.
After Raj went to a bar to meet Ruchi, Stuart arrived late, upset that Raj deliberately did not invite him. When Ruchi realized the guys were interested in more than friendship, she told them she wasn't looking for a long-term relationship but would be happy to hang out with them as pals. Stuart said he would like to spend time with her as a friend if she was open to that.
When Raj started a casual relationship with Ruchi after bumping into her one night and hitting it off, Stuart said Raj was his friend and he was happy for him. Also, although he didn't know how Raj would screw it up, he knew he would.
During Bernadette's second pregnancy, Howard decided he and Stuart should "divide and conquer" when it came to their responsibilities to care for Bernadette and Halley. Stuart chose to focus on taking care of the baby as it was less emasculating than looking after Bernadette.
When Howard was tasked with organizing Halley's first birthday party, he invited Stuart and asked him to bring a few things, like "balloons, streamers, ice, snacks, a bounce house, face painter, and a couple kids whose parents are willing to lie and say they know me from the Daddy and Me class I've never been to." Stuart agreed to help Howard out, but when a spot opened up at the free clinic for a colonoscopy, Stuart had to back out.
- Stuart's middle name is David.
- Stuart's store is called the Comic Center of Pasadena.
- Stuart's mom used to refer him to as her "little possum".
- Stuart studied art at the Rhode Island School of Design.
- Stuart's uncle is Stan Lee's dermatologist.
- After Stuart graduated from art college, he tried to make it as a graphic artist and a comic book artist.
Stuart: Oh, Sheldon, I'm afraid you couldn't be more wrong.
Sheldon: More wrong? Wrong is an absolute state and not subject to gradation.
Stuart: Of course it is. It's a little wrong to say a tomato is a vegetable, it's very wrong to say it's a suspension bridge.
Penny: You really going to lie on the floor and pretend to be dead all night?
Stuart: What do you think I was going to do at home?
Stuart: I can't believe she's gone. That woman took me in. If it wasn't for her, I would have been homeless.
Amy: One of us would have taken you in.
Stuart: Yeah, I don't recall any offers. But you know what, I'm glad it worked out the way it did, because I got to know this wonderful person.
Howard: Hang on, I know a place where you could you stay and earn some money at the same time.
Howard: I just have to warn you: it will involve humiliation, degradation and verbal abuse.
Stuart: So, what's the catch?
Bernadette: Hey, Stuart.
Stuart: *startled* Hey.
Bernadette: Sorry, did I startle you?
Stuart: Yes, but at this point pretty much any customer does.