Ryan Sinclair's mother died of an intense heart attack in 2012, (TV: The Woman Who Fell to Earth, The Tsuranga Conundrum) while doing the washing up. Her thirteen-year-old son was the one to discover her body. (TV: The Tsuranga Conundrum)

People always said that Ryan looked like his mother. (TV: The Tsuranga Conundrum) After she died, Ryan was raised by his paternal grandmother, Grace, as his father Aaron had left him, unable to cope. (TV: The Woman Who Fell to Earth, The Tsuranga Conundrum, Resolution)

Six years later, after the death of Grace O'Brien, Ryan felt that "it [was] like the best people get taken first." (TV: The Woman Who Fell to Earth) Ryan theorised that his father avoided him because he reminded him of Ryan's mother, whom he had loved. (TV: The Tsuranga Conundrum) Ryan eventually forgave his father for not being there for him after the death of his mother. (TV: Resolution)

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