Marciello and Engel will be joined in the event on the bill of the Formula 3 Macau Grand Prix on 18/19 November by Daniel Juncadella and Jules Gounon.
It will be the first running of the World Cup on the Guia street circuit in the Chinese territory since 2019.
The event, which was inaugurated in 2015, has not taken place since as a result of the COVID pandemic and travel restrictions in China.
Marciello, who won the last edition of the World Cup, will race a Mercedes-AMG GT3 for the Landgraf team with which he took the ADAC GT Masters title last year.
Inaugural World Cup winner Maro Engel again drives for Craft-Bamboo, the team with which he took victory in the Macau GT Cup last year.
It was the German’s third victory on the 3.8-mile Guia track: he also won the GT race in 2014, the year before it gained FIA world status.
Juncadella, who won the F3 Grand Prix in 2011 aboard a Mercedes-powered Dallara, will race a second Merc run by Craft-Bamboo, which won the GT World Challenge Asia title this year.
Macau rookie Gounon will take part with the Chinese Climax Racing team, which also competes in the GTWC in Asia.
Source: Autosport