Cathrow joined the Spurs as an assistant head coach and previously served as a member of the team behind the Wolves, Rio Boulevard and Valencia.
The Scot also served as the assistant manager of Newcastle under the leadership of Steve McLaren and Rafa Benitez and coached at the Red Heart.
Barbosa serves as the goalkeeper coach, while Diaz serves as the physical coach.
Barbo Sadias and previously were members of Nuno’s behind-the-scenes team at some of his previous clubs.
The Spurs announced that after serving as interim head coach at the end of last season, Ryan Mason will return to the youth academy as the head of player development.
It is understood that Ledley King will resume his role as club ambassador after a year under Mourinho and Mason’s coaching and will work with the club’s media and content teams.
Tottenham Hotspur appointed Nuno and their new head coach earlier this week on a two-year contract.