Reuben Shaw

Reuben Shaw was the husband of Dame Emily Shaw and the father of Liz and Lucy. Like Emily, he referred to Liz as "Elizabeth" when he was feeling tetchy. (PROSE: The Scales of Injustice)

After Emily received a letter from the Apocalypse Clock, she called Reuben and Lucy to say goodbye "in [her] own way", leaving the actual explanation to Liz. (AUDIO: The Last Post)

He died in 1995, after which Liz took some time away from P.R.O.B.E. to mourn him. (HOMEVID: The Devil of Winterborne) She continued to visit his grave months after. (HOMEVID: Ghosts of Winterborne)