Guest Stars Aya Cash as Joan Simon Jake Lacy as Ron Peter Scolari as Mel Kelcy Griffin as Debbie Allen Lin-Manuel Miranda as Roy Scheider Co Starring Chandler Head as Nicole Fosse Juliet Brett as Nicole Fosse Paloma Garcia-Lee as Adrienne Peter Chursin as Christopher Chadman Ari Brand as Danny Matt Wall as Fred Ebb Adrienne Lovette as Diniz Stephen Plunkett as Paul Grantner Aaron Krohn as Henry Lindsay Nicole Chambers as Leland Palmer Jeff Blumenkrantz as Lonnie Tyler Hanes as Jerry Orbach Sean Patrick Doyle as Michael O'Haughey Meredith Garretson as Bridget Hadley Robinson as Caroline Ryan Avalos as Sam Jim Ferris as Casting Director Austyn Johnson as Erzsebet Foldi Aurora Leonard as Phoebe Wyatt Cirbus as Sean Fosse Henry Dammacco as Leif Fosse Sean Fosse as Production Assistant Amy Justman as Adult Nicole Landen Lomot as Noah Fosse David Rowen as LA Theatre Pianist
