Trivia: Across the hall from Nelson and Murdock is an office that reads "Atlas Investments", a nod to the comic company (Atlas Comics) that would later become Marvel. The logo is the same as that of Atlas Comics too.
Trivia: During their dinner, Vanessa mentions a prince in a white suit and an ascot, to which Fisk replies, "it's a bit much." In the comics Fisk has been drawn almost exclusively in a white suit and ascot.
Trivia: While Matt is practicing in the gym, the camera focuses on an old poster advertising a match between his father and Carl "Crusher" Creel. Creel is the Marvel villain the Absorbing Man, who has also been seen in Agents of SHIELD.
Trivia: Wilson Fisk's code-name of Kingpin isn't acquired until season 2. However, his eventual nom de guerre is foreshadowed in season 1 by the way of Ben Urich's cork-board in his office, which features a king of diamonds playing card pinned to it.