Guy Warner is a fictional character on the New Zealand soap opera Shortland Street who was portrayed by Craig Parker in a guest role in 1992 before returning as core cast from 1993 to 1996.

[4][5] Parker revealed that he originally turned down the role, but after learning of his storylines and the development of the Tuesday character, he agreed to return in a more antagonistic role,[6] he stated; "Working with Michael [Galvin] again and Laura [Hill] (Toni Warner), who I haven't worked with before, I knew it would be great fun.

[9] Parker reprised his role via video call again in 2023, and in-person for the 2024 Christmas cliffhanger, saying that he was "always happy" to return "because it's Shortland Street.

"[10] Guy arrived in town in late 1992 and had a one-night stand with Meredith (Stephanie Wilkin) much to the entertainment of older brother, Chris (Michael Galvin) who had long courted her.

However the clinic staff were shocked when it was revealed Guy had a mistress, older women Jenny (Maggie Harper).

Meredith ended the relationship and Guy briefly dated HIV patient Deborah (Lisa Chappell) but realised he had fallen in love with his good friend Carmen (Theresa Healey).

The two began to date and Guy decided to get a vasectomy to prevent starting a family due both having bad experiences growing up.

Depressed, Guy leaned on Chris to help raise his daughter and the Warners moved to the United States when a tumour was found on Tuesday's brain that could not be operated in New Zealand.

Infuriated by his brother's interference, Guy fled Ferndale with Chris' wife - Toni (Laura Hill), their son Harry (Henry Williams) and Tuesday.

Chris located them 6 months later and whilst trying to escape him, Guy drove the family off a road-side bank and ended up in a life threatening coma.

Guy would again make a cameo via video chat in January 2023, discussing with Chris about releasing funds from the Warner family to help reopen the destroyed Shortland Street hospital.

Guy and Carmen Roberts began a close friendship in 1993 and their mutual friend Steve Mills tried to match make the two.

"[11] The two ran into trouble when Guy admitted to an affair but both actors confessed the two would always return to each other with Healey stating; "His kooky sense of humour, his inappropriateness – like he's always doing the wrong thing and she always berates him for it.