Agent 10

Agent #10 was the codename of a man employed by Dr. Phineus Phibes.

Physical appearance
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Personality
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Season one
He was one of the agents too afraid to tell Dr. Phibes they hadn't Dr. Albert Shaggleford found or his formula, leaving it to Agent 3.

He was one of the agents scared off by Scooby-Doo pretending to be a ghost (who was actually invisble); he ran straight into the other agent beside him seemingly sending themselves down a hole. (Shags To Riches)

Season two
When Uncle Albert's cover had been blown as Dr. Phibes's loyal scientist, Shaggy Rogers and Scooby-Doo had to rescue him. Dr. Phibes ended up escaping setting a timed detonation for his lair, leaving his operatives behind. Scooby used a special super speed Scooby Snack and rescued everyone. The day may have been saved, but that didn't spare them from the police arriving. (Uncle Albert Alert)

Appearances

 * Shaggy & Scooby-Doo Get A Clue!
 * 101. Shags To Riches (no lines)