Michael Lerner
— Ira Stuckman
Lesley Ann Warren
— Peggy Stuckman
Jack Klugman
— Artur
Meredith Scott Lynn
— Jennifer
Shiri Appleby
— Nikki
Mili Avital
— Vanessa
Ben Feldman
— Zeke
Adam Lamberg
— Lionel
Max Greenfield
— Ethan
Cynda Williams
— Grace
Mark Ivanir
— Rafi
Dan Bucatinsky
— High Strung Client
Oscar Nuñez
— Santa Designer
Victoria Justice
— Young Nikki
Kane Ritchotte
— Young Ethan
Arman Manyan
— Ira as Young Boy
Jeremy Glazer
— Young Artur
Vickilyn Reynolds
— Talk Show Host