Despite having retired from composing anything Star Wars related after the Sequel Trilogy ended, John Williams contacted Kathleen Kennedy and requested to write something for this show, simply because Obi-Wan Kenobi has never had a character theme of his own before, and Williams wanted to write one for him.
When Disney officially announced the series, actor Ewan McGregor revealed that he had known about the upcoming project (which was originally going to be a film before it was changed to a series) for a long time and commented: "It's a massive relief, because for four years I've been having to lie to people about it."
Set approx 10 years after Star Wars: Episode III - Revenge of the Sith (2005) and approx 9 years before Star Wars: Episode IV - A New Hope (1977).
Ewan McGregor (age 51) is around 10 years younger than Alec Guinness was when Star Wars: Episode IV - A New Hope (1977) was released. A New Hope (1977) and Obi-Wan Kenobi (2022) are set 10 years apart in storyline, making Ewan McGregor's age consistent now, relative to Alec Guinness's age in 1977.
Series director Deborah Chow was so committed to having Hayden Christensen reprise his role as Anakin Skywalker/Darth Vader that she personally flew to his farm to pitch the series to him.