United Kingdom, March 4 -- Jake Cannavale babysits his dad Bobby Cannavale and stepmom Rose Byrne's bearded dragon.

The 30-year-old actor is responsible for feeding crickets to Benny - who is named after 23-year-old singer Benson Boone.

Jake - whose half-siblings are Bobby and Rose's sons, Rocco, 10, and eight-year-old Rafael - told E! News: "You have to dip the crickets in calcium powder and cover them in vitamins so that the bearded dragon will get its vitamins from the crickets.

"My dad took the boys to Disney, so I went over and stayed at the house for a few days and watched the dragon."

Jake even described spending time with Benny as a "very cathartic experience".

The Mandalorian star - whose 59-year-old mom is actress-and-scree...