Stooky Sue was a sentient puppet created by the Toymaker.
History
Sue's husband was Stooky Bill, with whom she had three "Stooky Babbies". When the Toymaker sold Bill to Charles Banerjee, he tried to sell Sue and the Babbies as well, but Banerjee turned the offer down, taking just Bill with him for John Logie Baird's experiment with the television, which destroyed Bill.
When the Toymaker trapped the Fourteenth Doctor and Donna Noble inside his domain, Stooky Sue terrorised Donna when she got separated from the Doctor, reciting a poem about her husband's death before she and her Babbies attacked her. However, Donna fought them all off, and bashed Sue's head against the wall after mocking her rhyme schemes, seemingly killing her. This terrified the Stookey Babbies into retreating. (TV: The Giggle [+]Russell T Davies, Doctor Who 2023 specials (BBC One and Disney+, 2023).)