Young member of the Lehman board.

S3E2 - Mendel attends a special meeting of the trust board to approve a bump in Rose’s stipend. It’s supposed to be pro forma, but the board antagonizes Rose with their patriarchal attitude and disdain for Abe, leading her to give up the money. Rose is particularly sore about the fact that Mendel, a child, gets a board seat and she does not.

MENDEL: She's mean. I vote no.
– S3E2

2. It's the Sixties, Man!

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