According to Gossip Cop, the comedian will guest host on the show's second season throughout September, with a view to potentially becoming a permanent addition to the panel.
Shannon will join regular panelists Julie Chen, Sharon Osbourne and Sara Gilbert, along with new co-host Sheryl Underwood.
It was recently confirmed that original panellists Leah Remini and Holly Robinson Peete were not asked back for the new season.
Keeping Up With The Kardashians star Kris Jenner will join the show as a guest host this fall while Osbourne takes a brief hiatus.
The Talk returns to CBS on September 6.