Side-by-Side Comparison: Why the Internet Confuses Milly Shapiro and Gaten Matarazzo

Everything you need to know about Side-by-Side Comparison: Why the Internet Confuses Milly Shapiro and Gaten Matarazzo, featuring essential background.

Q1: Are Milly Shapiro and Gaten Matarazzo biologically related?
A1: No. Milly Shapiro and Gaten Matarazzo are not related by blood or marriage. Their physical similarities stem from having the same genetic condition, Cleidocranial dysplasia (CCD).

Q2: What causes Cleidocranial dysplasia?
A2: Cleidocranial dysplasia is an autosomal dominant genetic condition typically caused by a mutation in the RUNX2 gene. It impacts osteoblast differentiation, leading to incomplete bone formation, missing or hypoplastic collarbones, delayed cranial suture closure, and delayed or abnormal dental eruption.

Q3: Have Milly Shapiro and Gaten Matarazzo ever performed together?
A3: While both worked on Broadway during the early 2010s, Shapiro in Matilda and Matarazzo in Les Misérables, they have not co-starred in a major film or stage production together.

Q4: Why did people believe they were siblings on social media?
A4: Viral side-by-side images on TikTok, Reddit, and X paired screenshots of Charlie Graham from Hereditary and Dustin Henderson from Stranger Things. Their similar jawlines, dental spacing, and facial structures convinced casual viewers they belonged to the same family.