Dr Karl Daniel Mullen (26 November 1926 – 27 April 2009[1]) was an Irish rugby union player and consultant gynaecologist who captained the Irish rugby team and captained the British Lions on their 1950 tour to Australia and New Zealand.

[1] He was also selected to captain the 1950 Lions Tour to Australia and New Zealand, during which the Lions lost the Test series against the All Blacks 3-0, with one game drawn, but won the test series against Australia 2-0.

Teddy Morgan took over captaincy on the field but Bedell-Sivright remained tour captain.

Note 9: Michael Owen captained the Lions in the first tour game, the test vs. Argentina in Cardiff.

Note 11: Tour captain Sam Warburton was named on the bench for the first test.