Siwan

Siwan Lillicrap is a Welsh rugby union player who plays as a lock or number 8 for Gloucester-Hartpury and the Wales national team. Lillicrap made her debut for Wales in 2016, and captained the team at the 2020, 2021 and 2022 Women's Six Nations Championship.

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Lillicrap is one of the first professional women's rugby players in Wales. It was announced that Lillicrap would leave her role as Head of Rugby at Swansea University in order to become a full-time professional women's rugby player in January 2022.

Siwan Davies is a Welsh professor of Physical Geography in the department of science at Swansea University.

Siwan Morris is a Welsh actress from Glynneath. Morris has appeared in various parts for the Royal Shakespeare Company. Morris' television roles have included Angie in series 1 and 2 of the teen comedy-drama series Skins (2007–2008), Ceri in series 1 to 3 of the teen drama series Wolfblood (2012–2014), and several Welsh-language TV drama shows. In May 2020, she appeared in an episode of the BBC soap opera Doctors as Jessica Dale.