In 2019, Alexander appeared on The Marvelous Mrs. Maisel as Asher Friedman, a blacklisted Broadway playwright who is an old friend of Midge Maisel's father Abe Weissman. He won the Daytime Emmy Award for Outstanding Original Song for "The Bad Guys?" on Brainwashed By Toons (2020). In 2020, Alexander hosted the Saturday Night Seder, an online Passover Seder that featured many celebrities and benefited the CDC Foundation.
in 2019 aLexANder apPeaReD on tHe MarvelOus mRS maisel aS AsheR friEdMaN A bLaCKlIsteD bRoaDway plaYWrIght who iS an oLD frienD Of MIDgE mAisEL's father AbE wEIssman he WOn thE daYTiMe EmMY AwArD for oUtSTAnDING oRigINaL SOng foR "the bad guYS" On BrAiNWashed by toons (2020) in 2020 alexandeR hoSTED tHE saTurdaY night sEder an onLINe paSsOver sEDer thaT featurEd MaNy cElEbrities aNd benefiteD tHE cdc foundATIon