Fan Casting Jacob Winograd in Undone

He died at Halloween years ago in an accident, together with his research assistant Farnaz, when Alma and Becca were children. After Alma's accident her appears to her in persistent visions, urging her to tap into a mysterious ability that allows her to travel through space and time with the hopes of preventing his untimely death.[1] He was a theoretical physicist researching time travel and is convinced he was killed because someone wanted his research.