Grampu is a main character in the Oobi series. He is performed by Tyler Bunch.
Grampu is Oobi and Uma's grandfather. He almost always has his hands full taking care of the kids. His biggest goal in life is to make sure his grandchildren grow up smart and happy. Grampu introduces them to new ideas, like creating paintings and making music, on a daily basis. In his opinion, being Oobi's grandfather is lovely.
Grampu enjoys cooking, although the kids tend to make messes with the food he serves them. He usually wears an apron and a chef's hat when working in the kitchen. Grampu has a crush on Oobi's piano instructor Inka and has taken her on a couple of dates. The kids often unintentionally embarrass him when he tries to impress her, but she does not mind.
Grampu's catchphrase is "Lovely!" and he applies this phrase to almost every situation. Despite how he is Oobi and Uma's grandfather, he does not appear to be married and only one of his children—Aunt Oota—has been mentioned on the program.
When Oobi began as a series of two-minute shorts, Grampu had the least screen time out of the four core characters. Out of the main cast, he made the least appearances in the shorts and was actually absent in more shorts than he was seen. However, when the show was turned into a full-length program, Grampu's role was expanded and he became much more prominent. He was often written as a foil to the kids, or as someone to give them advice and knowledge. While Uma and Kako would frequently be absent for a story, Grampu was only absent for one full-length episode.
In an interview with the Newsweek magazine, Josh Selig mentioned that unlike the other puppeteers of Oobi, Tyler Bunch intentionally left his arm unshaved so that Grampu would have the appearance of an elderly grandfather. By comparison, the other main cast members all had to shave their arms regularly because they played younger characters. However, Bunch still visited a manicurist to get his nails touched up every week during production.
Grampu has fair skin and pink fingernails. His eyes are hazel and slightly larger than the children's. Grampu is the only character whose eyes are never updated or changed throughout the show. His fingers are curled in the front, and his thumb acts as his lip. He is the tallest of the main characters.
The acrylic puppet eyes used for Grampu stayed the same throughout the entire series. The eye props used for the kids were updated three times each, making Grampu the only character whose appearance never changed.
A photo in "Grampu Day!" shows that Grampu had brown hair on his head as a young adult. Since "Haircut!" reveals that Oobi's natural hair color is brown, it is likely that Oobi inherited Grampu's hair color.
Grampu's name is occasionally misspelled as "Grandpu" on plot summaries and press releases from Nickelodeon.
His counterpart in Dasdasi, the Iranian adaptation of the series, is a grandfather hand puppet with glasses and blue eyes who wears a red hat. Unlike Grampu, his counterpart on Dasdasi is more of a recurring character than a main one, and his children make regular appearances.
Because Oobi and Grampu share the same eye color and skin tone, it is implied that Oobi will look exactly like his grandfather when he grows older.