Doctors and medics play a very handy role in Infinity. Since they are labeled as Specialist they can capture mission objectives, whether its a console, terminal, signal antennae, etc. Also, some of the cards you can draw from your classified objective deck specifically relate to Doctors doing some kind of medical skill. So it's always to your advantage to have one or more in your army list.
Their other key role is they use a medical kit to get unconscious figures back into the action. When a figure takes a number of hits equal to their wound stat then they go unconscious. From this state they can be revived. Only if they take more hits than their wound stat are they killed and completely removed from the table. So a good doctor running around the battlefield can get some of your troops back in action quick.
This Daktari obviously comes from the Nomad starship Bakunin, where body modifications and just about anything else can be accomplish if you got the money to spend. If you want to be a Cat Girl... you can get that done on Bakunin!
You can certainly see the Japanese anime influence on Infinity when you see figures like this. I have to admit that's one of the things I like about the game too.
Have a good weekend friends!