Flashback + Kess, Dissident Mage
No, for the same reason that you can't cast a card from your hand twice. As part of casting a spell, you place the card being cast on the stack. The card would no longer be in the graveyard to be cast.

601.2. [...] To cast a spell, a player follows the steps listed below, in order. [...]
601.2a [...] a player first moves that card (or that copy of a card) from where it is to the stack. [...]