- "Thank you, Boake."
- ―High Sparrow
Boake was a member of the Faith Militant.
Boake escorts Queen Mother Cersei Lannister when she visits Queen Margaery Tyrell in her cell in the Great Sept of Baelor. He then escorts her to the High Sparrow, who thanks him and dismisses him. 
|Game of Thrones: Season 5 appearances|
|The Wars to Come||The House of Black and White||High Sparrow||Sons of the Harpy||Kill the Boy|
|Unbowed, Unbent, Unbroken||The Gift||Hardhome||The Dance of Dragons||Mother's Mercy|
|Game of Thrones: Season 6 appearances|
|The Red Woman||Home||Oathbreaker||Book of the Stranger||The Door|
|Blood of My Blood||The Broken Man||No One||Battle of the Bastards||The Winds of Winter|
Behind the scenes
The character may be named after Robert Boake, one of the filming location managers for the TV series.
In the books
In the A Song of Ice and Fire novels, there is no character named Boake.