Here's the easiest way to comprehend the longevity of Scooby-Doo: Casey Kasem has been doing the voice of Shaggy (Norville Rogers, if you insist on his given name) for longer than he hosted his weekly Top 40 radio show.
Advocate definition, to speak or write in favor of; support or urge by argument; recommend publicly: He advocated higher salaries for teachers. See more. Dictionary.com
1. One who pleads the cause of another. Specifically: One who pleads the cause of another before a tribunal or judicial court; a counselor. 2. One who defends, vindicates, or espouses any cause by argument; a pleader; as, an advocate of free trade, an advocate of truth. 3.