|The Kimi no Na wa. Wiki has an article about this subject.|
Taki is a high-school boy living in Tokyo who works a part-time job in an Italian restaurant, passes time hanging out with his friends, and seems to express an interest in architecture.
Taki is a young man with an average build and height who is, by Mitsuha's admission in her wish before the first switch, handsome. He has spiky, nape-length brown hair with bangs covering his forehead and dark blue eyes.
When he was first introduced at the beginning of the film, he was shown wearing a plain white t-shirt and blue shorts. He was also shown having a white band-aid on his left cheek. His standard school uniform consists of a white dress shirt with a striped green tie and a dark blue blazer, dark gray pants with a black belt, and dark blue loafers.
While working at his part-time job as a waiter, his uniform consists of a black vest, a long-sleeved dress shirt, a black bow tie, and a black apron that covers his pants.
During his date with Miki Okudera, he wore a dark jacket, a V-neck shirt striped with the colors orange, blue, and white, khaki pants, and black sneakers with shoelaces. At times, he wears an orange wristband on his right arm, which he got from Mitsuha, as a good-luck charm.
As a 14-year-old, Taki was noticeably shorter and had a smaller build, but largely the same. His middle school uniform consisted of a white shirt and green tie with a pale yellow blazer on top.
As an adult, he grows taller and develops broader shoulders, and retained the same haircut over the years. He wears a black suit and a blue tie, which his two friends from high school like to comment on.
Taki is generally a kind, hardworking and caring individual. Although he is organized and mostly handles everything quite nicely, his busy lifestyle and creative side; being interested in architecture and art and having artistic abilities, the clutter in his room can make him come off as unorganized.
Taki is quite hot-headed, quick to anger and blunt, as he tends to act rashly and blurt out the first thing on his mind. The bandages on his face and Okudera's comments suggest that this often gets him into fights.
Although this rashness can be seen as a negative trait, Taki has no problem standing up for himself, in contrast to Mitsuha, who takes the belittlement from her father and bullying from her classmates in silence. Taki in her body ends up delivering verbal (and in some cases, physical) lashings. His assertiveness rubs off on Mitsuha when she eventually gains the confidence to stand up to her father.
As a teenager, Taki naturally has trouble resisting touching Mitsuha's chest when they swap bodies (which would lead to Mitsuha chewing him out.) He also has trouble remembering that he wears a skirt, often forgetting to close his legs while sitting down, doesn't wear bras, and has no regard for Mitsuha's growing popularity. However, Taki takes pride in his charisma, as he believes that his presence in her life made her more popular. However, he's not too confident in romance, as he can't seem to find the right things to say to Okudera during their date, and justifies his single status by stating that he's "single because he wants to be."
Taki's straightforwardness lends well to his determination, as he explores the rural parts of Japan in order to meet Mitsuha in person, despite remembering/and knowing very little about her. Even after finding out she has passed away since three years ago, he was still determined to find a way to reconnect with her. Five years later, even after having lost all memories about her, his determination still remained
As an adult, Taki's personality remained much the same, but has matured. He has developed an even deeper fascination with architecture due to his experiences with Itomori, as he wants to build heartwarming landscapes that people will remember, perhaps because of how fleeting the existence of such things can be. Due to his missing memories, he also feels empty and always feels like he is searching for someone or something, mixing up his unconscious desire to find with Mitsuha with his troubles finding a job, until the two reunite.
In Your Name.
On August 14, 2021, Taki visit his grandmother's house to help her hold the Obon ceremony for his late grandfather. He meets Hina Amano and Hodaka Morishima there and advise Hodaka to find a gift for Hina's upcoming birthday.
In March 2024, when Hodaka visits Fumi's apartment, he sees the wedding photo of her grandson, who is Taki. It is inferred that he and Mitsuha married during the time Hodaka returned to his island.