In his photos, Smith appears a bit dour, distant, stern, etc. - lacking of friendliness or personality. Maybe that's how passenger ship captains then were expected to look? Or maybe it was just the culture and sign of the times?
On U tube " making of Night to remember " it is noted that the actor who played Captain Smith is almost his double and even Captain Smiths own daughter was taken aback at how just like her father he was.What would Smith look like without a beard? More professional? Other sea captains at that time had no beards.