Samuel Alton Johnston, better known by the ring name Sami Callihan, is an American professional wrestler and promoter, currently making appearances for Major League Wrestling (MLW) and Total Nonstop Action Wrestling (TNA), where he is a former Impact World Champion. He previously wrestled for Lucha Underground under the ring names Jeremiah Crane, and later, Jeremiah Snake, and on the independent circuit.

Lucha Underground was an American professional wrestling promotion founded in 2014 by United Artists Media Group. Partly owned by Lucha Libre AAA Worldwide (AAA), Lucha Underground also refers to its weekly television program, which featured characters portrayed by wrestlers from AAA and the American and Mexican independent circuits. The series originally aired in English on El Rey Network and in Spanish on UniMás.