Who is Pylades from the play, Iphigenia in Taurus?

Pylades is Orestes good friend. His character epitomizes friendship, as he accompanies Orestes on his dangerous mission, simply to keep him company. Pylades is married to Electra, Orestes's sister. When Iphigenia strikes a bargain to set free one of her prisoners, Pylades at first refuses, wanting to die with his friend. But he submits to Orestes's reasoning: that it is Orestes whom Apollo sent on this mission and that Pylades must not desert his wife.