Note: this whole email is IMHO. If you option differ that fine. Change the skills or focus on some other class.
Dr. Who biggest ‘weapons’ is his knowledge and charisma.
90% of the time the TARDIS is a plot device just to get him and his companions into the setting.
The Sonic Screwdriver is a gadget therefore it could be a magic wand or set of magic wands in a fantasy setting… like a wand of knock? So let’s take it out of the equation.
Let look at the skill he uses…
No - Acrobatics
No - Appraise
Yes – Bluff – He uses Bluff ever so often.
Yes – Climb – He climb stuff a couple times a season
No - Craft
Yes – Diplomacy – He uses this almost ever show
Yes - Disable Device – Most of the time he uses the Sonic Screwdriver to break thing or pick lock. So this could be a maybe.
Yes – Disguise – he sometime dress up in the culture clothes.
Yes - Escape Artist – every other show he escaping from being captured.
No - Fly
No - Handle Animal
No - Heal
Yes – Intimidate – He just intimidates the bad guys
Yes - Knowledge – Every Show he using some knowledge skill
Yes – Linguistics – he seem to talk to every race in their native tongue
Yes – Perception – again every show
Yes – Perform – He only uses Oratory and maybe Acting
No - Profession
No - Ride
Yes - Sense Motive – he uses the every other show
Yes - Sleight of Hand – He uses the to ‘palm’ little things
No - Spellcraft
No – Stealth – well maybe some times
No - Survival
No - Swim
Yes - Use Magic Device – He does not uses magic device but he figure out Alien technology all the time, which in a Pathfinder world could be magic.
What class or classes do you think of when you think about knowledge and charisma…
Bard – A Bard has 13 of the 14 skills Dr. Who uses. Dr. Who does not sing… but he talk a lot… maybe you house rule that does not need to sing but just need to be talking.
I would have to agree that a Bard – Archivist is a good match but he does not study a lot on the show so maybe he is more of a Bard – Detective.
Rogue - A Rogue also have 13 of the 14 skill Dr. Who uses on the show. the rogue does not have all the knowledge skill that a Bard has. Dr. Who would not really back stab. Maybe a Rogue – Investigator. I don’t know Dr. Who does not hit me as a rogue type.
Wizard seems too studious for Dr. Who. Maybe a Sorcerer…Lets look
Sorcerer has 3 class skills that Dr. Who uses. Looking at the blood line I would say he a Destined bloodline, which would give him Knowledge(History), which gives him 4 class skills.
My favorite is a Bard – Detective…