Billy met Mark when the youngest Wahlberg was new to the neighborhood, and the two quickly bonded at the top of the local sledding hill. In their youth, the pair fell into a tough crowd, and Billy recalls times when he had to call his father to bail them out of hot water.
Like his friend Mark, Billy was able to overcome his rough upbringing to become successful entrepreneur. The two remain close friends, and have invested in multiple businesses together - including Wahlburgers.
Now, Billy has formed a bond with the restaurant's head chef, keeping an eye on Paul’s mood for his little brother. Whether at the dinner table or the golf course, when Mark comes to town, you can find Billy by his side.