Headhunter - list of appearances

The following is a list of appearances by the Headhunter.

Season 1

 * Blood of the Daleks
 * Horror of Glam Rock
 * Immortal Beloved
 * Phobos
 * No More Lies
 * Human Resources

Season 2

 * Dead London
 * Grand Theft Cosmos

Season 3

 *  The Eight Truths
 * Worldwide Web