Trivia

He claims his old friend Christopher Eccleston emailed him and asked to be put on the list of possibles for the title role in his take on Doctor Who (2005).

He has admitted to being an intense procrastinator and has said that he often doesn't even start writing projects until weeks after the deadline has passed.

He is a huge fan of the American screenwriter Joss Whedon and cites his series Buffy the Vampire Slayer (1997) and Angel (1999) as being major inspirations in his re-imagining of Doctor Who (2005) and the spin-off Torchwood (2006). He even cast James Marsters, who played Spike in Buffy the Vampire Slayer (1997), in Torchwood (2006).

He was awarded the O.B.E. (Officer of the Order of the British Empire) in the 2008 Queen's Birthday Honours List for his services to television drama, making him the first Doctor Who writer to be recognized by the Honours system since the series began in 1963. He was also only the second producer of the series to receive an honour, after Verity Lambert in 2002. In 2015, his successor, Steven Moffat, was also given the award.

The 'T' in his name doesn't stand for anything. He added it to distinguish himself from the BBC Radio 2 D.J., Russell Davies.

He saw his mother experience a psychotic episode when he was younger and has said it would later influence his writing.

He wanted to be a Comic book artist in his teens but was advised against it due to being color blind.

He is a big fan of Charles Dickens.

He was a fan of the science-fiction series Doctor Who (1963) since he was a child. His favourite Doctor was Tom Baker and his favourite story was The Ark in Space: Part One (1975).

As executive producer and writer of Doctor Who (2005) he broke some of the conventions of the original series, Doctor Who (1963), by the introduction of LGBT (lesbian, gay, bisexual and transgender) characters and the use of flatulence jokes.

According to broadcaster and journalist Mark Lawson, Davies's transformation of Doctor Who (2005) was such that he "turned into a global cash cow a series that had come to be ridiculed by many for cheap and creaking representations of planets and aliens. To play the two-hearted Time Lord from Gallifrey, he cast the sort of actors - Christopher Eccleston and David Tennant - who play Hamlet on stage".

He was ranked #42 in the 2008 Telegraph's list "the 100 most powerful people in British culture".

He was educated at Olchfa Comprehensive School.

Was heavily inspired by 'Buffy the Vampire Slayer' for his rebranding of 'Doctor Who'.

In the Independent on Sunday 2006 Pink List - a list of the most influential gay men and women - he came no. 18, up from no. 73. In the IoS Pink List 2007 he came #1, in 2008 - #2, in 2009 - #14.

He began his professional television career in 1985 after a friend suggested that he should talk to a television producer who was seeking a temporary graphic artist for the children's show ''Why Don't You?''.

Married via civil partnership to his long-term partner Andrew Smith in 2012, until Smith's death in 2018.

In 2021 he controversially advocated that only LGBTQ+ actors should continue to play LGBTQ+ roles. The well-known actor Nigel Havers, who had earlier guest-starred in Davies' series The Sarah Jane Adventures (2007), described his comments as the most ridiculous thing he'd ever heard during an interview on Good Morning Britain (2014).