New book Finding Freedom reveals Meghan Markle made sure her father was told of her son's birth, but didn't want to hear if he replied.
The couple was meant to be in Scotland with the Queen this summer.
The actor thanked Meghan for sharing "gorgeous" Archie in the video posted on his birthday.
Meghan Markle held up the copy of Duck! Rabbit! which had a sticker on which said Archie's Book Club.
The Duke and Duchess of Sussex shared the video on the Save the Children UK Instagram account.
Harry and Meghan handled the birth of Archie in a different way to William and Kate's birth announcements.
The youngest royal turns one on Wednesday.
Dr Jane Goodall - who was interviewed last year by the Duke of Sussex for Vogue - has suggested he always intended to give his son a more regular upbringing.
Royal fans were keen to see a new picture of the Duke and Duchess of Sussex's ten-month-old son.
They are believed to have declined the monarch's invitation last year.
Meghan Markle and Prince Harry to Visit U.K. Next Month
The Duke of Sussex flew out from the UK after attending the UK-Africa Investment Summit in London.
She was a mother figure to the Duke of Sussex after the death of Princess Diana in 1997.
For every beanie the socially-conscious company knits in its community groups, another is donated to someone in need.
A new image of the 7-month-old was released by the Duke and Duchess of Sussex.
The Duke and Duchess of Sussex spent their son's first New Year's Eve in Canada.
The Duke and Duchess of Sussex are enjoying an active festive period.
The four-month-old attended his first royal tour engagement along with his parents Meghan Markle and Prince Harry.
The Duchess of Sussex has replaced the famous ring.
It's said to have a similar meaning to his regular name.
The presenter fed and held Archie during a visit over the summer
The royal couple were left "overwhelmed" by congratulatory messages.
The Duchess of Sussex's father, Thomas Markle, has given a revealing interview about the rift with his daughter Meghan.
There are more than 1,000 rooms in the grand Berkshire fortress.
Like father, like son.