Bill Maher Host, Executive Producer Johann Hari Guest Bernie Sanders Guest Atul Gawande Guest Bob Costas Guest Michael Mann Guest Neil deGrasse Tyson Guest Mel Brooks Guest S.E. Cupp Guest Jay Leno Guest Chrystia Freeland Guest Robert Costa Guest Chris Matthews Guest Matt Taibbi Guest Gavin Newsom Guest Alexis Goldstein Guest Josh Gad Guest Katrina vanden Heuvel Guest Dan Senor Guest Salman Rushdie Guest Billy Martin Executive Producer Marc Gurvitz Executive Producer Sheila Griffiths Executive Producer Brad Grey Executive Producer Scott Carter Executive Producer