a bit of chopping of Rebel Mini's pulp newsboy might give you Tintin.
and the 'Chinese' figure in their Pulp heroes looks like one of Tintin's costumes.
Khurasan's fleeing scientists gives
The one on the left resembles Calculus.
The various pulp ranges have Trilby wearing detectives - Thomson & Thompson (or is it the other way around?) are sometimes shown wearing them, rather than bowlers, which seem far rarer.
Peter Pig have a suitable dog
& lots of their SCW,WWII & AK47 figures are useful too, for Dictators, civilians and the like.
For Haddock, perhaps Peter Pig's 8th Army Higher Command
or from the (OOP?) Battlefront LRDG set