That chin got sharper and sharper as time went on.

The Swami was a 30s / 40s standby - a Svengali wise in the Ways of the East, where fakirs and other mystics could cloud men's minds.

If that didn't work, get out a roscoe.

Wikipedia also says:

In the 1970s, Gould modernized Tracy by giving him a longer hair style and mustache, and added a hippie sidekick, Groovy Grove.

God help us.