Game of Thrones star Jack Gleeson has hit out at celebrity culture and celebrity endorsement of products.

The young star, who plays King Joffrey on the hit series, has previously said that he might shy away from acting when Game of Thrones ends and a video was released online, via the Huffington Post, of a talk he gave to the Oxford Union in November.

Gleeson told the group, "It [fame] was an environment from which I instantly wanted to retreat. I detested the superficial elevation and commodification of it all, juxtaposed with the grotesque self-involvement it would sometimes draw out in me."

He continued to discuss celebrities who endorse products, "What's ironic is that you see celebrity endorsing things like, you know, musical tampons and appearing in advertisements for lavender scented teeth whitener or something. Wielding goods whose sell-by dates [will] ironically, probably, outlast theirs.

"Having one's image, and effectively life, democratized, dehumanizes and sometimes objectifies it into an entertainment product. What sort of valuation of the ego would one have once you've let it been preyed upon by the public for years and years? Perhaps, it becomes truly just skin and bones."