Characters | Height | Age | Gender | Species |
Arlo Beauregard | ~ 4 ft 6 in | 15 years old | Male | ½ Alligator, ½ Human |
Bertie | ~ 12 ft | ~ 19 years old | Female | ½ Human, ½ Giant |
Alia | ~ 4 ft 6 in | ~ 16 years old | Female | Tiger |
EXPLANATION OF ARLO THE ALLIGATOR BOY CHARACTERS’ HEIGHTS

We estimated Bertie’s height based on how she could have fit inside a subway car. According to Word Disk, an R160 vehicle has an average elevation of about 12 feet and 2 inches.
So, Bertie is about 12 feet with a bit of leeway for the top of her head to fit the car.
Then, in the movie stills, Bertie is at most three Arlo-worth in height. Therefore, we estimated Arlo to stand at around 4 feet and 6 inches.
Lastly, Alia stands at about the same height as Arlo in the show pictures, also at 4 feet and 6 inches.
EXPLANATION OF ARLO THE ALLIGATOR BOY CHARACTERS’ AGES

The characters’ heights are based on the show’s Fandom Wiki page, with Bertie’s age estimated between 19 or 20 years old, and Alia’s age ranging from 16 to 18 years old.
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Reference:
https://www.imdb.com/title/tt13454122/
https://www.netflix.com/title/81018635
https://arlothealligatorboy.fandom.com/wiki/Arlo_the_Alligator_Boy_Wiki
https://arlothealligatorboy.fandom.com/wiki/Alia
https://arlothealligatorboy.fandom.com/wiki/Bertie
https://arlothealligatorboy.fandom.com/wiki/Arlo_Beauregard