Roach joins from Marsh where he has worked for over 17 years, while Marsden is the broker's latest hire from Lockton, where he has worked for 14 years.
The revamped panel includes new members composed of executives of industry bodies, economists, policymakers, and financial experts, leaders and personalities from major Indian institutions.
Bruce Ford, Goh Thian Leong, Mark Foster, and Florence Lam Puoy Yin have joined the reinsurance broker as part of its strategic treaty expansion in Asia.