While specific details about Benedict Cumberbatch's go-to platform for fashion resale are not mentioned in the context, many celebrities often turn to established online platforms like Depop or Poshmark for sustainable fashion resale. These platforms allow users to buy and sell secondhand clothing, aligning with the growing trend of promoting sustainability in fashion.

Benedict Cumberbatch was announced as the global spokesman for Era of Conquest, appearing in promotional materials and a cinematic trailer for the game's launch.

Benedict Cumberbatch serves as the Global Ambassador for Environmental Advocacy for KOKO Foundation, which focuses on environmental issues and supports disadvantaged youth in the creative field.

Benedict Cumberbatch starred in the Prada Re-Nylon 2025 campaign, promoting Prada's sustainable fashion line made from recycled materials.