Stephen Cook
Person
A mathematician whose work on the satisfiability problem was instrumental in showing that it is 'as hard as any problem in the class P' and led to understanding NP-completeness.
Mentioned in 2 videos
Videos Mentioning Stephen Cook

Richard Karp: Algorithms and Computational Complexity | Lex Fridman Podcast #111
Lex Fridman
A mathematician whose work on the satisfiability problem was instrumental in showing that it is 'as hard as any problem in the class P' and led to understanding NP-completeness.

Brian Kernighan: UNIX, C, AWK, AMPL, and Go Programming | Lex Fridman Podcast #109
Lex Fridman
Showed that there were classes of problems (like graph partitioning) that appeared to be really hard, related to NP-completeness.