After Don Messick died, Scott Innes had the role of Scooby in the cartoons from 1998 to 2002. Scott also had the role of Shaggy from 1999 to 2002.

From the website of radio station WRQQ Classic Hits 103.3 in Baton Rouge, LA:

"In 1997, Scott became the official voice of Hanna-Barbera’s famous cartoon dog character, Scooby-Doo. He has gone on to become other voices for the Scooby-Doo franchise as well, and in 2001 became the voice of Norville 'Shaggy' Rogers and Scooby-Doo’s nephew, Scrappy-Doo! Scott has also professionally voiced other cartoon characters such as Popeye, Snagglepuss, Professor Pat Pending from the Wacky Racers, Shag-A-Long from The Hillbilly Bears and most recently, the world-famous stone-age characters from that famous town of Bedrock, Fred Flintstone and Barney Rubble.

Scott Innes has voiced over five Scooby-Doo animated motion pictures and his voice was in the first 'live-action' Scooby-Doo movie in 2002. He has voiced over 1,000 talking Scooby-Doo items such as toys and video games, which have been sold worldwide. He has appeared on countless TV shows such as The Tonight Show with Jay Leno, Fox and Friends, and most recently TV Land’s 100 Greatest Quotes and Catchphrases of All Time. Scott’s own catchphrase of 'Hug them babies when you get home' has become a staple of the Baton Rouge airways.

Scott was voted Baton Rouge’s favorite On-Air Personality three years in a row by Parents Magazine, and he won Air Personality of the Year by the CRB in Nashville, Tennessee in 2002. In 2006, he was voted the Academy of Country Music’s Air Personality of the Year!"¹

Information Source:

¹Scott Innes. WRQQ FM. Retrieved from http://www.classichits1033.com/2016/02/02/scott-innes/