 
    Mark O'Brien
        0 FOLLOWERS • 23 CREDITS • MAY 7, 1984 • 41
        
        
        
            Biography
                
            Mark O'Brien (born May 7, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle and Tom Rendon in Halt and Catch Fire.
            
        
        
        
        Known For
             
                        The Kelly Clarkson Show
                    
                
                    
                         
                        Perry Mason
                    
                
                    
                         
                        Your Honor
                    
                
                    
                         
                        Hannibal
                    
                
                    
                         
                        Killjoys
                    
                
                    
                         
                        The Sticky
                    
                
                    
                         
                        Halt and Catch Fire
                    
                
                    
                         
                        Kin
                    
                
                    
                         
                        Bad Times at the El Royale
                    
                
                    
                         
                        Marriage Story
                    
                
                    
                         
                        The Darkest Minds
                    
                
                    
                         
                        61st Street
                    
                
                    
                         
                        City on a Hill
                    
                
                    
                         
                        The Last Tycoon
                    
                
                    
                         
                        How It Ends
                    
                
                    
                         
                        Republic of Doyle
                    
                
                    
                         
                        Nuremberg
                    
                
                    
                         
                        Arrival
                    
                
                    
                         
                        The Copenhagen Test
                    
                
                    
                         
                        Parallel
                    
                
                    
                         
                        Anon
                    
                
                    
                         
                        Seven Veils
                    
                
                    
                         
                        Ready or Not
                    
                
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