Gregory Peck's "Moby Dick" role
I believe the answer is:
ahab
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">gregory peck's moby dick role</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ahab that I've seen before include "Husband of Jezebel" , "Captain -, pursuer of Moby Dick" , "one who hunted whales" , "Whaling Captain" , "Captain in search of Moby Dick" .)