It was Dr. Anthony.
"Come in." Rick said aloud. The Doctor came in but with a friend as well.
Dr. Anthony had a dog with him, a giant wolf like German Shepard with a standard K-9 unit badge. With strict eyes and a serious look, the dog reminded him of a stern military leader.
"Hey, Dr. whose this guy?" Rick asked moving his hand to motion the dog forward.
"Her names Chew, one of the newer dogs at our base, I wanted to see how animals react to you in your new form but she doesn't seem to mind does she?"
Chew wander closer to Rick and sniffed his hand tentatively, eventually licking it has well.
Rick laughed and began to pet her, the dog wagging her tail slightly.
"She's quite friendly now isn't she?" Rick noted.
"Strange, she doesn't act like that around others, in fact she's quite hostile to most strangers, interesting..." Dr. Anthony noted.
"How about I leave you two alone for now, be sure to tell me any behavior she does."
"Got it, cya."