In firefighting lingo, Alpha, Bravo, Charlie, Delta, are terms are used to designate the sides of a structure.
- "Alpha" refers to the front side of the structure
- "Bravo" refers to the left side of the structure,
- "Charlie" refers to the back side of the structure
- "Delta" refers to the right side of the structure
The actors playing younger version of Buck had to have markings drawn on to replicate the birth mark over Oliver Stark's (Buck) left eye.