The three performers have ties to iO Chicago improv theater and the Second City comedy troupe. They joined "SNL" after longtime cast members Kristen Wiig, Andy Samberg and Abby Elliott left at the end of last season.
"SNL" is to kick of its 38th season Saturday, with Seth MacFarlane as host and Frank Ocean as musical guest.
Notable deaths of 2014 [PHOTOS]
Tatiana Maslany to make her New York stage debut