Expansion This needs a stretch. (Feel free to remove when satisfied of completion.)
* Physical appearance.
* Personality.
* History.

Agent #13 was the codename of an elderly man employed by his own son, Dr. Phineus Phibes.

Physical appearance

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Shaggy & Scooby-Doo Get a Clue!

Season one

Dr. Phibes asked agents 3-13 if they had found the location of Dr. Albert Shaggleford and his nanotech formula yet, but only Agent 3 was brave enough to say no.[1]

Aboard Phibes's cloudship in Mount Zeryodelwietzen, Agent 13 snickered at two agents who were attempting to set up a homing beacon while wearing polar bear suits which were missing eye holes for them to see. After Phibes discovered Shaggy Rogers and Scooby-Doo interfering in his plans, he ordered Agent 13 to search for the nearest, most vicious agents in the area, with him finding Misty Swiss and her attack dog.[2]

He ate leaves as part of a longevity experiment. (Don't Feed the Animals)

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Season two

He drank prune juice straight from the carton, while his son had breakfast.[3]

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  1. Shags to Riches, season 1, episode 1.
  2. More Fondue for Scooby-Doo, season 1, episode 2.
  3. Runaway Robi, season 2, episode 9.
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