[4] Otto was musically trained, but switched careers and became an actor after studying engineering at the University of Michigan.

[9] Kruger played the supporting role of Judge Percy Mettrick, who unsuccessfully urges Will Kane to leave town in High Noon (1952).

[7] His television roles included those of Dr. Mumford in the 1959 episode "Experiments in Terror" of the NBC science fiction/adventure series The Man and the Challenge,[citation needed] as Ben Tully in "Gun City" of the ABC western series, The Rebel,[11] as Franklyn Malleson Ghentin in the 1961 episode "A Fool for a Client" of James Whitmore ABC's legal drama, The Law and Mr. Jones,[12] and as Karl in the episode "Quite a Woman" of the short-lived 1961 CBS series The Investigators starring James Franciscus.

[citation needed] On March 20, 1920, Kruger married Broadway actress[17][18][19] Susan "Sue" MacManamy.

[22] Kruger died at the Motion Picture and Television Country House[23] in Woodland Hills, California, on his 89th birthday.