Baymax Bard
It's simple... Bard is a support who heals his patients, and is big and soft. Who else is big, soft, and a healthcare companion? BAYMAX! He wouldn't necessarily NEED a voice but just imagine... "I am Bard, your personal healthcare companion. I was alerted to your need for medical attention when you said 'OW' (or equivalent phrase an adc may shout)" People already have thrown around the idea. Heck, just google Baymax Bard and you can find stuff. Such as this:
http://apollo-na-uploads.s3.amazonaws.com/1425703746847/13619_601642249970052_7968545480355357904_n.jpg http://41.media.tumblr.com/68ed31376ed042f192eb362b163d0c84/tumblr_nkb3e3WvZm1sp4ll1o1_1280.png
in cat form "Hairy Baby!"