I have literally never heard of this guy.
I watched SNL regularly in the 1970s, when the first cast was still there (Dan Aykroyd, John Belushi, Bill Murray, Gilda Radner, et al.) The second cast was sometimes funny (Dana Carvey, Phil Hartman, Eddie Murphy, Mike Myers, Martin Short), but it started going straight downhill from there. I stopped watching SNL entirely by the mid 1980s.
I stopped watching SNL in 1990 when all the original cast left.
The “Celebrity Jeopardy” spoofs are funny. Apparently Norm MacDonald wrote those and played Burt Reynolds.
https://www.youtube.com/watch?v=bEghu90QJH4&t=46s