|家庭成員：|| 不明 － 母親|
Cindy － 養母
Emma － 姐姐
|圖片頁面 • 模板頁面|
Before the crash
On the Island
After crashing into the ocean, Mr. Eko carries him to shore, when he calls out for his sister and points to his sister still floating in the water. Mr. Eko pulls her to safety. Ana-Lucia sees her and performs CPR, saving her life. Template:Crossref
After saving his sister from drowning, Ana-Lucia takes it upon herself to become a maternal figure to both Zack and Emma. On the first day after the crash, Mr. Eko asks Cindy if she can look after Zack and Emma while he takes the dead bodies out. Emma had a teddy bear with her on the plane, that Zack held onto while Emma was hurt.
- In "", Eko and Jin see some people, possibly Others, walk past them in the jungle. One of the group appears to be a child, and is dragging with him a teddy bear tied to some rope. The bear resembles Zack's, though Damon Lindelof and Carlton Cuse denied the similarity on the Official Lost podcast.[source needed]
- Zack's name is spelled "Zach" on the Lost trading card game.