Jackson T. Pettigrew

The Ghost soldier (possibly General Jackson Pettigroup) was a victim of Simone Lenoir and Lena Dupree.

Scooby-Doo On Zombie Island
The Ghost soldier appeared on the mirror and said "Get away." Scooby-Doo and Shaggy Rogers were frightened, but the ghost was actually trying to warn them off the island.

After all the cat creatures died out, the Ghost soldier appeared again and thanked for defeating the cat creatures, apparently only noticed by a startled Scooby.

Appearances

 * Scooby-Doo On Zombie Island

Quotes
"Get away."

"Thank ya'll."