Height 152 cm. Mckenna's exquisite facial features are somewhat similar to Emma Charlotte Du Lei Watson's; But McKenna has a pair of drooping eyes, which makes her delicate face more innocent and adds a bit of unique charm to her. In "Genius Girl", she and "Captain America" Chris had a cross-dressing show. At that time, McKenna, who was only 1 1 years old, was already very infectious. In Young Sheldon, she and Little Sheldon form a "genius CP"; Is a girl sitting in the front row, holding hands confidently, smart and confident. Now 16-year-old McKenna has been out for ten years.