Kathleen Gallagher began writing plays after discovering how few women playwrights there were. Politicised by the kindness of (often poor) strangers met on overseas travels, she has gone on to write 15+ plays, poetry, and a novel. She has also directed a number of documentaries reflecting her interest in the environment, spirituality, and the peace movement. Gallagher's environmental work includes her trilogy of Whisperers documentaries (2009 - 2011), Seven Rivers Walking — Haere Mārire (2017), co-directed with Gaylene Barnes, and Rohe Kōreporepo — The Swamp, the Sacred Place (2021) co-directed with Kate Goodwin.
Kathleen’s work is often an expression of her life values. Writer Janet Joyce in a Chrysalis Seeds Trust interview, June 2007, page 4