Frank Wesley Fenno Jr. (March 15, 1909 – August 16, 1973) was a highly decorated officer in the United States Navy with the rank of Rear Admiral.

During World War II, Rear Admiral Frank Wesley Fenno Jr. played a significant role in submarine operations.

In addition to delivering the ammunition, the Trout would pick up a load of torpedoes and fuel at Corregidor and conduct a patrol through Formosa Strait and the lower reaches of the East China Sea on its way back to Pearl Harbor.

Fenno needed additional ballast to replace what had been removed in Pearl Harbor, but sandbags, the usual substitute, were vital to the defense of Corregidor.

[6] Under Fenno's careful supervision, the precious cargo was transferred to the Trout during the night, with five hundred and eighty-three gold bars and eighteen tons of silver coins stacked in the bilges.

[5] After departing Corregidor, the Trout passed through the East China Sea, during which Fenno engaged and sank an enemy freighter, Chuwa Maru, using three torpedoes.

[5] Admiral Withers hailed Fenno as a hero, and the rescue of the gold and silver garnered positive attention during a time when good news was desperately needed.

Fenno was portrayed by actor Robert Karnes and made a personal appearance at the end of the episode to discuss his account of the patrol.

Fenno's exceptional performance as the commanding officer of the Trout following his second war patrol led to him receiving two additional Navy Crosses.