The Cherub is a monster new to the Doom universe, having not appeared in older titles. It has the appearance of a human baby with insect-like wings.
Cherubs typically attack in groups, with the player fighting a series of several of them in the same area. However, Cherub groups are typically smaller than Trite or Tick swarms, and they usually attack the player 2 or 3 at a time instead of several at once.
Cherubs are often found near Mancubi, leading some to think that Cherubs are their offspring, which is wrong.