|For the Framework version of Alistair Fitz, see Alistair Fitz|
Alistair Fitz is the father of Leo Fitz who abandoned his son when he was ten years old.
Father of Leo Fitz
Friendship with Holden Radcliffe
While studying in Glasgow, Alistair Fitz met Holden Radcliffe, with whom he would often sit with on the train and show him pictures of his newborn son Leo. However, Alistair was cruel to his son, insulting him for not being smart enough and often calling him worthless. When Leo was ten years old, Alistair walked away and the two never saw each other again.
- Mrs. Fitz - Ex-Wife
- Leo Fitz - Son
- Jemma Simmons - Daughter-in-law
- Alya Fitz - Granddaughter
- Holden Radcliffe † - Former Classmate