From original Battlestar Gallactica (Pictured in Man From Atlantis) star Laurette Spang's page on working with a monkey in a robot dog suit:
Then there was Muffit, Galactica’s K9 counterpart to R2-D2. “Oh I loved the daggit,” Spang notes. “What made the daggit so lovable was that there was a monkey inside. Evie the monkey always let you knows how she felt. There was one day on the bridge ¬– with the whole cast – and the daggit came running in, with that funny little sound it made.
“We’re all very tired, it’s the end of a long, long day on this huge set. Here comes Evie, who decides to pull off the daggit head and throw it on the floor! The director yells: ‘Cut, cut, cut!’ We stop, the trainer makes sure Evie was okay, they screw the daggit head back on, start up again – and Evie does it several more times. This monkey had just had it! She was letting us know: ‘No more. I am done.’ I worked several times with the daggit and always felt it should have played a bigger part in the show.”
Is it true you didn’t particularly like the real chimps in the film?
What I loved about the first movie was that chimps were good, but they’re actually the most evil f***ers in the world! Look at any research on primates and I think you might agree that chimps are the scariest. In their culture they have murderers, serial killers, and they’re as strong as hell! They can go psychotic on you; one day one was trying to hump me and the next day he was spitting on me, throwing s**t at me.
The thing that made them so unnerving to me is that since you were a child they’ve been anthropomorphised and cute–ified, and you look at them and they are very cute and kind of similar – but also not similar, its that unknown quality. That’s the uneasiness about them; most humans would say "Oh they’re cute" because it’s a way of pushing off that dark undercurrent. And that’s what’s weird about the nature of the material itself; without saying anything it shows you about the underside of humanity.