Comment from the review section here in 2010
"Look for Jack Nicholson in a small role as radioman Dolan and as per the civil rights era, Al Freeman integrates the crew which was not the case in Mister Roberts."
I watched this film today on TCM and Al Freeman Jr, who passed away last month, did not play a sailor in this film. Freeman and Diana Sands played natives on the island the Capt & Ensign Pulver washed up on.
Just for the record, I'm not a Dude, I'm a Dudette! share