Occupation: Doctor
Strengths: Clever, resourceful, cunning
Weaknesses: Untrustworthy, selfish, lazy, greedy, vain, weak, inept
Part Played By: Jonathan Harris
"I am allergic to weapons pointing at me."
(A fairly sound medical analysis)
The Sky Pirate
"Don't trust him! He's as slippery as a bucket of eels!"
(Major West's opinion of Smith)
Island in the Sky
"It's not easy to lie here, filled with an explosive liquid."
(Always having a complaint of some kind)
Forbidden World
"Doctor Smith is physically sound, but his mental state leaves much to be desired."
(Robot's scientific analysis of Smith)
The Curse of Cousin Smith
"You don't want my brain. I'm so ignorant I'm almost feeble-minded!"
(A statement no one will argue with)
Invaders From the Fifth Dimension
"Oh dear, or dear, what have I done?! Oh well. No matter."
(Getting over a crisis unusually quickly)
Revolt of the Androids
"Doctor Smith isn't a good man, but he isn't a bad one either. The thing is; he's alive!"
(Will coming to the Doctor's denfense)
The Astral Traveler
"What a frightful mess I've made of everything. And all I wanted was to rule the universe..."
(Observations on the injustice of life)
The Space Destructors