The dancing doctor in this episode (Dr. Simon) replaced Dr. Steel who had appeared in previous episodes.
When Smart is looking through the photos, the first he sees is that of Alfred E. Neuman, the mascot for MAD magazine.
The 8x10 black and white photo that Max rips to pieces is a shot of singer/ukulele player Tiny Tim, who had a novelty hit record with "Tiptoe Through The Tulips" that year.