Alethea Ada McGrath (1 June 1920 – 9 February 2016) was an Australian actress and comedian.

She played Jedi Master Jocasta Nu in Star Wars: Episode II – Attack of the Clones.

In the 2000s, she played Mrs. Lillie in Romulus, My Father (2007) and Miss Taylor in Knowing (2009).

Before concentrating on acting professionally, McGrath taught drama at Methodist Ladies College, Kew, Melbourne.

[2] She died in a hospital near Melbourne, Australia on 9 February 2016, aged 95.