Jerry Seinfeld’s lookalike son Julian turns 20 and his famous father leaves sweet comment: ‘Happy Special Birthday this year!!’

Jerry Seinfeld wished his son Julian a happy 20th birthday on Wednesday in an Instagram comment he left on the page of wife Jessica, who had posted pictures of Julian.

Jessica, 51, shared multiple shots of her middle child with the 68-year-old comedian – they are also parents to daughter Sascha, 22, and son Shepherd, 17 – to commemorate Julian’s special day.

The Brooklyn native, who co-created the NBC staple Seinfeld with Larry David, wrote in a comment thread, ‘We love you so much, Jules. Happy Special Birthday this year!!’

In the main picture Jessica posted, Julian – who is a student at Duke University – wore a button-down midnight blue denim shirt with a chain and black sunglasses, with his wavy dark locks parted in the middle.

‘Happy 20th Birthday to @julianseinfeld!’ Jessica captioned the image, listing off a number of positive traits she sees in her son.

‘Your work ethic enables you to balance a heavy college course load with a job you love,’ she wrote. ‘Your sharply tuned BS detector suffers not one fool. The moral high bar you set for those around you keeps us all in line.’

She continued, ‘You chose your friends wisely, and treat them all like family. You are such a phenomenal and gorgeous human being. Your goodness is greatness, especially in this world today. I love you, my sun.’

In another frame on Instagram Stories, Jessica wrote, ‘You have been hustling through this life, working so hard to prove yourself. You are already everything you want to be and I am so proud to be your mom.’

In line with the family’s comedic prowess, she added, ‘You could maybe use a haircut though? 

Jessica shared a black and white shot of her with her son, writing, ‘You make everyone around you a better person.’

A number of Jessica’s famous friends left comments wishing Julian a happy birthday in the thread.

Ali Wentworth said, ‘Happy Birthday @julianseinfeld how are you 20????? I met you as a baby! And now you’re a powerhouse! What a human! Let’s celebrate.’

Beth Stern said, ‘So handsome and so sweet! Happy Birthday!!!’ while Bridget Everett noted that Julian ‘looks so much like his mama.’

The proud mom shared a series of images of her son, including one with her and Jerry present

Julian, a student at Duke University, wore a button-down blue denim shirt with a chain and black sunglasses, with his wavy dark locks parted in the middle in a shot Jessica posted 

In another frame Jessica wrote, ‘You have been hustling through this life, working so hard to prove yourself. You are already everything you want to be and I am so proud to be your mom’

Jessica shared a childhood shot of Julian; she and Jerry are also parents to daughter Sascha, 22, and son Shepherd, 17

Jessica shared a black and white shot of her with her son, writing, ‘You make everyone around you a better person’

The iconic comedian and TV personality was pictured performing in Philadelphia in 2018