Two, Addy would likely him "Michael," assuming it wasn't something worse.

Though neither of those things happened to me, I didn't know my biological father, until recently. We have never spoken, but I would never call him "Dad" or "father", I already have one, the man who married my mom when I was 5.

He doesn't have much in the way of self-esteem and the person he looks to for strength isn't there.

The scene calls for Addy calling him Dad.

When Michael Kelly does what he sets out to do, Addy begs him, "Daddy, please stop."

In my head, I can't see Addy calling him anything but Dad.

The scene you set previously, that it took him so long to call another man Dad, it is likely the word has taken on a different meaning. As for the next scene, that line would make sense.

He would try to have as little contact with the biological father as possible. I've seen it described as being stuck in the same room as an abuser as similar to the feeling of drowning or otherwise being unable to breathe--essentially the beginning of a panic attack, even years or decades later, even if their life is currently otherwise "normal".

The biological father wouldn't generally receive a title. And the child would likely find it awkward in instances where he needs to refer to the person as "father" and will look for ways to avoid to use that term. "Biological father" is a qualifier I've seen, but only used when absolutely necessary. Simply referring to the father as "him" or "he" seems to be the most popular when speaking of the biological father. ("Does he have to be there?" / "Why does HE have to be there?&quot The pitfall transferring this to literature is that the child usually doesn't care if you know who "he" is that they're referring to whereas the reader would need to be provided context clues.

Less frequently and amongst people their own age, I've heard other terms used, all derogatory... along the lines of "sperm donor". All are meant to insult the biological father as an act of free will over their traditional authority over the child.

I think he would avoid addressing him directly, not even saying his name.

It was what I was thinking.

and I was placed in foster care. I eventually called my foster parents mom and dad - but they never really were. At age 17 my real dad was still my real dad. Actually he was my "daddy".