Robert Pattinson is a/an Actor
Robert Sheehan is a/an Actor
Robert Carlyle is a/an Actor
Robert Lowell is a/an Poet
Robert Conrad is a/an Actor
Robert Frost is a/an Poet, playwright
Robert Buckley is a/an Actor,Model
Robert Wagner is a/an Actor , producer
Robert Stroud is a/an Pimp ,Salesman ,Ornithologist
The answer depends upon which Saint Robert you are referring to. There are many.
Robert Downey Jr is a/an Actor,producer
Robert De Niro is a/an Actor,producer,director