Alex Greville (Glenda Jackson) is a character from John Schlesinger's British drama film Sunday Bloody Sunday, set in London. Born into an upper-class family in the city, she grew up surrounded by traditional values that she often found stifling. Despite conforming to societal standards in her earlier years by marrying, Alex soon realized that the traditional construct of marriage didn't align with her beliefs about love and freedom.

After her divorce, Alex embraced self-discovery, rejecting societal norms about relationships. As a counselor, she guides others to find fulfillment in unconventional paths, echoing her own journey toward authenticity. Fiercely independent, she values genuine connections over societal pressures and challenges traditional institutions with her liberal views on relationships. Despite her free-spirited nature, Alex is emotionally intelligent and empathetic, fearlessly questioning societal norms and engaging in discussions about love, freedom, and fulfillment.

In Sunday Bloody Sunday, Alex is portrayed as one-third of a complex love triangle involving herself, Daniel Hirsh, and Bob Elkin. While maintaining an open relationship with both Daniel and Bob, Alex navigates the complexities of love and freedom with grace and honesty.

Her relationship with Daniel is characterized by mutual understanding and respect as they both grapple with societal pressures and expectations regarding their sexuality and relationships. With Bob, Alex finds solace in his unapologetic authenticity and his unwavering confidence in his bisexuality.

Despite occasional moments of jealousy and uncertainty, Alex embraces the unconventional nature of their relationship, believing that love should not be confined by societal norms or expectations.