magwitch is estella's biological father, her mother is jagger's assistant, i think her name is molly
Magwitch (or Provis, Mr. Campbell, the convict, the shackled man): Magwitch and Pip first meet when Pip is a boy and Magwitch an escaped convict. Magwitch does not forget Pip's kindness in the marshes, and later in life devotes himself to earning money that he anonymously donates to Pip. Eventually, Magwitch comes to London to see his 'gentleman,' and after Pip's shock and shame wear off, the two become friends. Ever a convict, however, Magwitch is captured by the police. Just before he is sentenced to hang, he dies.
Estella: Estella is Miss Havisham's adopted daughter and her project in cultivated cruelty. Raised by the old woman to be cruel and hard to men, Estella, a great beauty, entrances Pip. She is mean to Pip for most of his life, although at the novel's end they meet again, and she seems to be a softened, changed woman.Estella is another child of mysterious parentage, and Pip eventually learns that she's Magwitch's daughter.