A tall right-handed middle-order batsman, a left-arm bowler who varied his pace between medium-paced seamers and slow spinners, and a spectacularly good close catcher, specialising in fielding at short-leg, he played all his county cricket for Glamorgan.

[1] For a few years at the beginning of his cricket career, he also played during the English winters for the South African provincial sides, Transvaal and Western Province.

Nevertheless, in seventeen years of first-class cricket he made only thirteen centuries, and his career average of 26 reflected soundness rather than flair, on the unpredictable surfaces that applied in the days of uncovered pitches.

[4] Walker was picked for three Tests against South Africa who toured England in 1960; he batted well down the order in all three games and hardly bowled at all, but probably did well enough to have expected further chances.

He was also largely responsible for the development of the National Cricket Centre for Wales at Glamorgan's home ground at Sophia Gardens in Cardiff.