|Affiliation:||Impossible Mission Force|
|Played by:||John Polson|
|First appearance:||Mission: Impossible II|
|Last appearance:||Mission: Impossible II|
Soon after, Billy assists Ethan in getting into Biocyte. After Ethan gets out they meet.
Later, Ambrose meets McCloy in a facility near Australia, Billy and Luther wait for Ethan as he moves in but later are confronted by several of Ambrose's men. What happened to him is unclear.