This is it- lets do it-

Skye - Ultimate Pilot *PROTAG*

Chase - Ultimate Detective

Marshall - Ultimate Medic? (Firefighter)

Rubble - Ultimate Construction Worker

Zuma - Ultimate Lifeguard

Rocky - Ultimate Mechanic

Everest - Ultimate Snowboarder

Tracker - Ultimate Scout (P-22: Hey Tracker we have the same ultimate-)

RoboDog - Ultimate Robot

Tuck - Ultimate ???

Ella - Ultimate Comic Artist

Sweetie - Ultimate Princess

Rex - Ultimate Archeologist 

Arrby - Ultimate Pirate

Cooper - Ultimate Adventurer (Belongs to rubric_cube )

Luna - Ultimate Astrologist (Belongs to me)