In the books and the audio productions of "Doctor Who", the 4th Doctor (Tom Baker), The 7th Doctor (Sylvester McCoy) and the 10th Doctor (David Tennant) encountered Boudica and yet again, the 1st Doctor (William Hartnell) met Emperor Nero, whom Boudica led her tribe in rebellion against. Alex Kingston (Boudica) plays River Song in "Doctor Who".