Colonel-in-Chief Sir Nils Olav.
Nils Olav was given the rank of visekorporal (lance corporal) and has been promoted each time the King’s Guard has returned to the tattoo. In 1982 he was made corporal, and promoted to sergeant in 1987. Nils Olav died shortly after his promotion to sergeant, and his place of honour was taken by Nils Olav II, his two-year-old near-double. He was promoted in 1993 to the rank of regimental sergeant major. On 18 August 2005, he was promoted to Colonel-in-Chief and on 15 August 2008 he was awarded a knighthood. He is the first penguin to receive such an honour in the Norwegian army. At the same time a 4-foot-high (1.2 m) bronze statue of Nils Olav was presented to Edinburgh Zoo. The statue’s inscription recognises the King’s Guard and the Military Tattoo. A statue also stands at the Royal Norwegian Guard compound at Huseby, Oslo.
Source : http://en.wikipedia.org/wiki/Nils_Olav