Ken the Wolf Boy

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This was one of the first anime that Hayao Miyazaki and Isao Takahada had worked on and Toei Animation's first TV show. This was a dub of the pilot episode that featured Don Messick and Daws Butler. (Misdirected, I might add)
http://cartoonresearch.com/index.php/ken-the-wolf-boy-1963/

Lun Lun the Flower Child

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Here's an anime obscurity that Fred Patten discovered. http://cartoonresearch.com/index.php/anime-fandom-in-north-america-part-2/

Fujimaru of the Wind

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Another '60s anime that was originally known as Ishimaru of the Wind. http://cartoonresearch.com/index.php/fujimaru-of-the-wind-1964/

Devilman

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Now here's a show from Go Nagai that isn't as widely known as Mazinger Z or our next show. http://cartoonresearch.com/index.php/the-many-programs-of-go-nagai/

Cutie Honey (1973)

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The original fan service show, and here's the straight-to-video sequel:

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Two things worth mentioning about the 1994 version: One) There were four episodes that were scripted, but not animated. Two) Go Nagai personally chose Jessica Calvello as the voice of Kisaragi Honey.

Norakuro

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This series was inspired by Otto Messmer's Felix the Cat, just like a lot of Japanese cartooning back then. http://cartoonresearch.com/index.php/norakuro/

The Bear That Wasn't

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Based off of a story that Frank Tashlin did in 1948, Chuck Jones decided to tweak what Tashlin did without consulting him first. For example, The bear got cigarettes and coffee. Thus, Tashlin was pissed at what Jones did. Michael Sporn has scans of the book if anyone is interested: http://www.michaelspornanimation.com/splog/?p=7442