Thomas Kelvin Coslett (born 14 January 1942) is a Welsh former dual-code international rugby union and professional rugby league footballer who played in the 1960s and 1970s, and coached rugby league in the 1970s and 1980s. He played representative level rugby union (RU) for Wales, and at club level for Aberavon RFC and Llanelli RFC, as a goal-kicking full-back, and representative level rugby league (RL) for Wales and Other Nationalities, and at club level for St. Helens (captain), and Rochdale Hornets, as a toe-end kicking style (rather than round the corner kicking style) goal-kicking , or , i.e. number 1, 8 or 10, 11 or 12, or 13, and coached at club level for Rochdale Hornets, Wigan and St. Helens. Background Coslett was born in Bynea, Carmarthenshire, Wales. Rugby union Coslett made his international rugby union début for Wales as a full-back in the 1962 Five Nations Championship match against England. He also appeared that year in the Test matches against Scotland and France, before shifting to the professional rugby league code in 1962 with St. Helens. Rugby league Coslett played , and scored 2-goals in St. Helens' 7–4 victory over Swinton in the 1962 Lancashire Cup Final at Central Park, Wigan on Saturday 27 October 1962, he played fullback in the 15–4 victory over Swinton in the 1963 Lancashire Cup Final at Central Park, Wigan on Saturday 26 October 1963, he played , and scored a goal in the 2–2 draw Warrington in the 1967 Lancashire Cup Final at Central Park, Wigan on Saturday 7 October 1967, he played in the 13–10 victory over Warrington in the 1967 Lancashire Cup Final replay at Station Road, Swinton on Saturday 2 December 1967, he played and scored 6-goals in the 30–2 victory over Oldham in the 1968 Lancashire Cup Final at Central Park, Wigan on Friday 25 October 1968, he played , and scored 2-goals in the 4–7 defeat by Wigan in the 1968 BBC2 Floodlit Trophy Final at Central Park, Wigan on Tuesday 17 December 1968, he played , and scored 2-goal in the 4–7 defeat by Leigh in the 1970 Lancashire Cup Final at Station Road, Swinton on Saturday 28 November 1970, he played , and scored a goal in the 5–9 defeat by Leeds in the 1970 BBC2 Floodlit Trophy Final at Headingley Rugby Stadium, Leeds on Tuesday 15 December 1970, he played , and scored 4-goals in