UPDATE: 25th March - I've just found out that the Character names in the casting call below are fake to hide their real identities which would reveal too much. Anyone think it could be the Degroots?
Thanks to Lyly for alerting me to this new info from Secretagentman.
Looks like eps. #320 is 'hippie-centric' with a flashback to the '70's. Features Horace, a scientist/mathematician and Olivia an attractive elementary school teacher. Both embody a 'hippie' idealism. Olivia may show up later in other eps.
Source: Secretagentman
