The Word is:”who”

who

/huː,hʊ/
pronoun
pronoun: who

1. what or which person or people.

“who is that woman?”

2. used to introduce a clause giving further information about a person or people previously

mentioned.

“Joan Fontaine plays the mouse who married the playboy”

  • archaic
    the person that; whoever.
    “who holds the sea, perforce doth hold the land”
  • Source credit: Google