Name: Nathaniel Anthony Stark
Gender: Male
Age: Depends
Looks:

Tony's favorite picture

Julia's favorite picture

Powers: Speed and Strength (he isn't as strong as Julia.)
Other: He is a happy Baby and likes his dad a lot and carries an iron man pushe with him everywhere. He doesn't know that Tony is Iron Man.

Name: Morgan Stark
Age: Depends
Looks:

Powers: Only got Julia's Speed
Other: You seem Endgame. That's what she is like.

Name: Emma Marie Stark
Age: Depends
Looks:

Powers: Strength
Other: She is as stubborn as her father is. She is like a mini Tony but with way more energy.