The Black Hole Action Figures Wave 1 (1979)
While Kenner may have been the first company to hit paydirt with “mini-action figures” in the 3 3/4″ scale (a scale determined by the size needed to make the accompanying Millennium Falcon toy affordable to both manufacturer and consumers), Mego that ball and ran with it at full speed, producing numerous figures in an identical scale. Formerly known for its large-scale Star Trek figures in the early 1970s - a line which coincided not with the series’ original broadcast, but with its syndication success and the animated series - Mego cleverly decided to try to siphon off some of Kenner’s (and Star Wars‘) market share by creating both licensed and original characters in that scale. The die-cast metal Micronauts led the way, though when Mego won the licenses for TV shows such as Buck Rogers, and movies like Disney’s The Black Hole, those figures were produced in a similar 3 3/4″ scale. (Click here to see the rest of the article plus pictures.)
As has been mentioned before, the size and scale of the Millennium Falcon as a toy vehicle made Kenner reinvent the wheel where character-based action toys for boys were concerned. To keep the price of the Falcon down, both for the company making it and for the people buying it, the figures were scaled down to 3 3/4″, whereas the previous industry standard had been set by foot-tall G.I. Joe figures with more points of articulation, interchangeable costumes and accessories, and so on - basically the boys’ equivalent of Barbie dolls, at roughly the same size (and price point). 
The first item released in Character Option’s lineup of Doctor Who action figures during the show’s first season back on the air in 2005, the RC Dalek Battle Pack consisted of two Daleks, their respective color-coded radio controllers, and an action figure of either the ninth Doctor or Rose. (Though almost identical to the individually-released figures - the Doctor sports a burgundy-colored sweater, and both figures have a slightly less detailed paint job - these figures beat the individual carded figures to the stores by several months.) The Daleks are the real stars of this box set, and as much as I loved Dapol’s endless fleet of Dalek figures, the attention to detail on these Daleks puts them in a whole different league. 
In 2000, I wrote what I fully expected to have been my last Doctor Who toy review as Dapol gave up the ghost with a final box set of Dalek variations. If someone had told me at that time that I’d be getting the first wave of an incredibly detailed new line of Doctor Who action figures six years later, I would’ve told them they were crazier than the Master. And then I would’ve placed my pre-order.
I’ll admit it. The Black Hole is less of a guilty cinematic pleasure for me, and probably more along the lines of a harmless obsession. When I saw this then-shocking PG-rated Disney movie at the age of seven, the thought of Maximillian drilling folks to death terrified me - this wasn’t make-believe stuff here like Star Wars, because my dad had a drill in his workshop! But I also knew that, if it came to that big red behemoth chasing me, VINCENT and Old BOB wouldn’t let me down. They’d have me covered. They’d know what to do. Because they were the two coolest movie robots to come down the pike since R2-D2. I later outgrew my abject fears about the movie’s most violent scene, but found that my affinity for its two robotic heroes never quite waned. Most accounts of the making of the movie have pinpointed these two hovering robots as the source of countless production difficulties, since the props were heavy enough to require piano wire to suspend them, and the piano wire then had to be optically hidden in as many shots as possible - back in the day when you couldn’t just “run it through the computer” to accomplish that. Ever notice how many opportunities the director took to get close enough that you couldn’t really see the robots floating in mid-air?
Judging from the product shots, it looks like the most recent Star Wars Jedi Council three-packs contain repackaged figures. It’s a pity (but, in the current economy, probably a cost-cutting, inventory-clearing necessity), because the first two three-packs in this line were so refreshingly new.
It’s safe to say that Dapol’s most popular Doctor Who toys were the dreaded Daleks. The first toy Daleks were introduced in time for the Christmas shopping season that followed the mechanical meanies’ second appearance in late 1964, and quite a few toy licensees have benefitted from the Dalek trademark since then.