In a conversation between Clay (Ron Perlman) and Unser (Dayton Callie), Clay refers to the western hero Wild Bill Hickok. Dayton Callie played Wild Bill Hickok's assistant and best friend, Charlie Utter, in the series Deadwood (2004).
Dave Kushner can be seen as the bald headed handle bar moustached guitarist in the wedding band. He's fame comes from being the rythum guitarist for Velvet Revolver. He also cowrote and preformed much of the soundtrack to the series included the theme song "This Life."
When the third season ended NS (2010) Jax, Juice, Tigg, Happy, Bobby, and Clay all got arrested each one had on their cuts. When the fourth season started Jax, Juice, Tigg, Happy, Bobby, and Clay all got released from Stockton they did not have their cuts. The rest of the members of SAMCRO who picked up Jax, Juice, Tigg, Happy, Bobby, and Clay had their cuts and gave their cuts to them when they got released.
Kenny Johnson (Herman Kozik) & Ryan Hurst (Harry 'Opie' Winston) also worked together on Bates Motel (2013) as Caleb Calhoun & Chick Hogan respectively.
The only episode in the series besides the first episode where Jax is seen wearing a different pair of white Nike sneakers and not his signature all white Nike Air Force One sneakers.