Cheri Oteri was a huge star when she was on SNL (https://www.vulture.com/2012/03/saturday-nights-children-cheri-oteri-1995-2000.html) and responsible for several memorable main characters. Yet, after (https://www.insider.com/where-are-they-now-snl-cast-members-2019-7) SNL, while she still has steady work (https://en.wikipedia.org/wiki/Cheri_Oteri#2001%E2%80%93present), she didn't become a huge household name like say Will Ferrell (who she did several sketches with).

One of the most underrated SNL cast members that there's been.