The tattoo artist Irish Freddy is played by real life tattoo artist Freddy Corbin. Freddy Corbin helped Kurt Sutter design all the tattoos for the show.
Given the IRA connection in the plot, this episode title is Irish for "The Troubles".
Series creator, Kurt Sutter, plays Otto on the show and is also married to Katey Sagal, who plays Gemma in the series.
In the window of the palm reader it says "Teller" this is Jax' last name and Gemma's previous married name.