Idris Williams
character on Welsh TV series "Hinterland"
Cadair Idris
the 'Chair of Idris', mountain in Gwynedd, Wales where Idris Gawr studied the stars
Ancient Welsh name derived from *iudd
meaning 'lord' (an obsolete element also found in Gruffudd/Griffith), and ris, 'ardent, impulsive' (same as Rhys). It was revived in the mid,19th century and used very regularly until the 1920s, but infrequent thereafter.
Ianto Jones
character on British TV series "Torchwood"
From Welsh rhod 'circle
disk, orb' + rhi 'ruler'. The 'circle' probably refers to a crown or other symbol of royalty.
