"Uh, we learned it's good to have Saltines around your house.
Alex Rebar (one of the great names of cinema, to be sure) played astronaut Steve West -- the titular Melting Man -- of experiment #704 The Incredible Melting Man.
According to his Wiki entry, "After serving in the Korean War he moved to Paris where he co-founded and acted with the Studio Theater of Paris and managed a jazz club," which is... wow!
He eventually returned to the States where he played his most famous (and probably messiest) role as the Incredible Melting Man, before moving on to a long career in television.
He died in 2021 (aged 81), leading to another irresistible tidbit from his Wiki article: "His final wishes were for no memorial but that 'Everyone should just go home, crack open a bottle of wine, and listen to 'Got My Mojo Workin' by Muddy Waters.'" Think about it, won't you?