Sparkes takes over from Vukusic at Mayfair, ex-AmaZulu man Wilken will serve as an analyst along with Kyle Solomon and Michael Loftman, while Plaine is the new head of performance following Andre Volsteedt's exit earlier this month.
The trio will aid Pirates head coach Milutin Sredojevic and his assistant Rhulani Mokwena.
Pirates released a statement, which reads: 'Orlando Pirates Football Club is delighted to welcome Andrew Sparkes, Darian Wilken and Franck Plaine to the technical team.
'Andrew Sparkes joins the stable for the upcoming season as the Goalkeeper Coach of the senior team, while Darian Wilken will form part of the Buccaneers Football Analysis Department alongside Kyle Solomon and Michael Loftman, who both joined the club earlier in the year.
'Our final addition to the technical team is Franck Plaine, who will be the Head of Performance – a post recently vacated by Andre Volsteedt who left the club earlier this month.
'While we welcome these three gentlemen, we also say farewell to another. The club would like to thank goalkeeper coach Ivica Vukusic for his services and wish him all of the best in his future endeavours.'