Admiral Ackbar and Doctor Who

I was so looking forward to seeing Luke, Han and Leia return in Star Wars: The Force Awakens that I didn't even think about some of the more minor characters from the original trilogy that might make an appearance.  When Admiral Ackbar showed up, so did a huge smile across my face.  Who didn't love this guy?  I've always wondered how many of those bug-eyed fish sold at pet shops during Star Wars' heydey because of their resemblance to the good Admiral.