We are all used to seeing Duck Commander CEO Willie Robertson with a full-on beard, so when his daughter Sadie posted an old family picture featuring a beardless Willie on her Instagram account (@legitsadierob), the Duck Dynasty star was totally unrecognisable.

Sadie's most recent throwback Thursday picture was of her, her brother and Willie all wearing white outfits and smiling towards the camera. She captioned the photo "yes that is my dad" and if she hadn't, people might still be wondering who that young man was!

Someone commented that Willie looked "completely different without the beard" while another called him a "qt" (cutie). "I didn't know he had dimples under there," another girl said.

Sadie's picture was not the first shocking throwback reveal of Willie. In the Duck Commander Facebook account, a photo of Willie and Korie's wedding was uploaded last January 11 as the couple celebrated their 23rd anniversary.

Korie wore a traditional wedding gown and sported dark, wavy hair and Willie, still beardless, had on a white tux. People commented that "Korie has only gotten prettier" and many observed that their son John Luke is the spitting image of their dad. A lot of people also said that Sadie takes after her father's looks too.

Another hilarious photo of the Robertson family was posted on Sadie's Instagram account just last month. She had her arm around beau Blake Coward and was holding an umbrella over them. The two were all poised to take a sweet couple photo when Willie snuck up behind them and pulled a wacky face for the camera. Sadie took her father's antics in good humour.

"What's a picture without a photobomb," she captioned.

When the two started dating, Willie reportedly warned Blake not to hurt his daughter. "You hurt her, I'll hurt you. I'm watching you like a hawk, and I'll break your legs if you do anything to her," said Willie.