Let's take one last stab at this beastie.
You're starting a new campaign. We'll stick with 3.5 D&D, just because it's easy.
Player comes to you with his new character. He's all excited about his concept - a brilliant guy who solves problems by talking rather than combat. He's really into Doctor Who and wants to draw his inspiration from that.
You look down at his character sheet and see: Str, Dex, Con, all 18, Int: 8, Wis: 8, Cha 6, and no social skills whatsoever.
Do you accept this character without comment or do you raise questions?
The design compared to the description don't match. The player has made some kind of mistake.
He's got a PC who'd be great at combat and lousy at diplomacy and knowledge. But he's saying the character avoids combat and solves problems and talks his way out of thinggs.
Either talk to the player about his own mismatch, or ignore what the player said and see what the player does.
The reason those stats don't support Dr. Who is because who is persuasive and knowledgeable. This PC would have virtually no skills and no chance at succeeding at any of those kind of skill checks. Something that Dr. Who is expected to do.
Furthermore, with combat oriented attributes, the PC will probably turn to combat to solve his problems, because he's better at it.
It might have made sense for Dr. Who to have a high DEX and CON to avoid being hit and survive "not fighting". But the high STR is an attack stat. The points on it should have been spend on INT, WIS and CHA to bring them up to get some bonuses on knowledge and persuasion skill checks.