It's not that easy to answer, as they've had several 'leaders' and different factions.
Davros, a Kaled scientist, created the Daleks, however they killed him, they would not allow themselves to be commanded by someone who was not a Dalek.
They've had high ranking daleks as leaders, such as Dalek Emperors, and Daleks Supreme. Davros once even masqueraded as a Dalek Emperor. The 'New Paradigm' Daleks have a Prime Minister.
Dalek Supreme.
After the Human Daleks were all killed, the Doctor offered Dalek Caan mercy because he didn't want to see two genocides in one day. Dalek Caan then used an emergency temporal shift to escape.
The eye stalk in all Daleks protrudes from the rotating hemispherical cap on the top of the Dalek. This particular aspect of Dalek design has never changed over 47 years.
Especially in the newer episodes of Doctor Who, the daleks come in different colors.
Mark I Dalek (The Daleks) Mark II Dalek (The Dalek Invasion Of Earth) Mark III Dalek (1965-1984) Dalek Emperor (Evil Of The Daleks and Parting Of The Ways) Dalek Supreme (Planet Of The Daleks) Necros Dalek (Revalation Of The Daleks) Imperial Dalek, Special Weapons Dalek, Renegade Dalek (Remembrance Of The Daleks) New Series Dalek (2005-TBA. Daleks will return in 2010's "Victory Of The Daleks").
The "yellow dalek" is called the Eternal Dalek.
Dalek Supreme.
the supreme dalek
A Dalek is a Doctor Who alien which looks like this But you are right that is green.....on the inside...
the daleks make the cult of skaro, there names are, Dalek Sec (leader), Dalek Caan, Dalek Thay and Dalek Jast
It has to be the Dalek.
The basic answer is yes. Most of this was disclosed in the Doctor 7 show Remembrance of the Daleks which aired in 1988. It is unclear how the Emperor Dalek Davros is related to the Emperor Dalek in the Doctor 2 Adventure Evil of the Daleks
dalek
Basically those voices were electronically manipulated. You can find some information on how the Dalek's voices were created in the Wikipedia article on "Dalek", specifically here: http://en.wikipedia.org/wiki/Dalek#Voices
The cast of All American Doctor Who - 2013 includes: Nicholas Briggs as Dalek Fred Dale Murray as The Master Kit Prakkamakul as Frightened Man
The BBC controls all Doctor Who imagery, and has indeed registered a trademark on the word "dalek."
Murray Grumbar has: Played Arcturus in "Doctor Who" in 1963. Played Dalek in "Doctor Who" in 1963. Played Dalek Machine Operator in "Doctor Who" in 1963. Played Dalek Operator in "Doctor Who" in 1963. Played Mechonoid in "Doctor Who" in 1963. Played Mechanoid in "Doctor Who" in 1963. Played Dining Car Attendant in "Moody and Pegg" in 1974.