Captain Marvel is vacationing in London when the Ultron Sentinels invade. Mutant Arcade designs the level under the basis of Sentinels being used to destroy mutants. "The Suffragist" acted as a voice for the Silent Sentinels throughout their vigil. Ghosts often appear in the narrative as sentinels or prophets of things to come. Some people wholeheartedly approved of the work Silent Sentinels were performing. The public's responses to the Silent Sentinels were varied. In 1917 she was imprisoned as a member of suffragist Alice Paul's nonviolent Silent Sentinels. The Silent Sentinels (Liberty and Justice). The latter often use the robots known as the Sentinels as weapons. Hawkeye came to Superior Spider-Man's rescue as the Ultron Sentinels attack. The 30th Reconnaissance Squadron operates RQ-170 Sentinels. The following are alternative versions of the Sentinels, which appear outside of regular Marvel canon. The UK Government ministers are often seen ferried around in Discovery 4 Sentinels. She accepted and was seen helping them against Magneto and the Sentinels. He is later seen with the advanced Nimrod Sentinels.