Archie Comics, it appears, now has its own YouTube channel, or at least a fan-operated one. This one has no full episodes of 1971's Archie's TV Funnies, but a compilation of Dick Tracy shorts from the series (some standalone videos are incomplete). In this collection, Dick (John Erwin) is after:
88 Keys, recently rebooted in the current comic book from Mad Cave as an Irish musician-turned-would-be-vigilante (Either Erwin or Dallas McKennon).
The Mole (Howard Morris, since the voice is similar to Morris' characterization of Dilton Doiley).
Pruneface (McKennon).
Flattop (McKennon), in a short we've previously screened.
Mumbles (McKennon) & Stooge Viller (McKennon or Erwin or Morris), also in a previously screened short. Filmation, for some reason, gave Viller a new name.
Wikipedia's entry on the series is also incomplete, which is why I have to guess on a couple of the villains.