Captain Treesdale is a Caucasian male with brown hair.
He wears a blue military uniform with the E.T.I.S. logo on the sleeves. It is accessorized with medals. He also wears a military cap and black shoes.
He is warm and welcoming towards the gang. He would even go as far as protecting them from the Space Ape.
What's New, Scooby-Doo?
Captain Treesdale gave the Mystery Inc. a tour around E.T.I.S. He then gave them tracking pins to monitor their location in the building for safety reasons. He told the gang to move quickly, as it was almost time for Velma's reward ceremony.
When Shaggy Rogers and Scooby-Doo are attacked by the Space Ape, he lunged onto the creature to protect them. Treesdale was injured by the alien and got an 'alien rash'. He was taken to the infirmary by the janitor.
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