|Full Name||Brother Adrian|
|Businesses||Children of the Mountain|
|Voiced by||John Keating|
Brother Adrian is a character in the HD Universe who appears as a radio guest in Grand Theft Auto V. He is voiced by John Keating.
Brother Adrian is, in 2013, the British head of Children of the Mountain cult, which is based on Strawberry Ave in Strawberry, Los Santos, having taken control after a legal battle with founder Darius Fontaine. He appears on West Coast Talk Radio being interviewed by Michelle Minx and Lazlow where he states that it is a 'fellowship' and not a cult. Brother Adrian also emails Franklin Clinton about joining the group and after completing the steps on their website. he sends Franklin a t-shirt.
- Brother Adrian, despite being Welsh, speaks with an Irish accent.