Here are my experiences that I have done as an extra or as a bit part extra:

bit part extra in:
Kees&Co season 2 (Football player)
SpangaS season 12 (School Student)
Misfit 1 (German version) (School Student)
Misfit 3 (Basketball Squad) (School Student)
Creator Camp season 1 (School Student at School Camp)
SpangaS The Campus season 15 faya shots (School Student)

Extra in:
Good Times Bad Times episode 6058+6057 (Party Beast)
SpangaS season 11+12+13 (School Student)
The Slut From 6VWO season 2 (School Student)
Short Film Daydreaming (School Student)
Misfit 2 (School Student)
100% Coco New York (Fashion show visitor and New York resident)
Hidden Stories season 7 (School Student)
Netflix series Ares season 1 (School Student)
Ninja Nanny season 1 (School Student)
SpangaS De Campus season 14+15 (School Student)
Creator Camp season 1 (School Student at school camp)
My Little Big Brother season 1 (Shopping person in the hardware store)
The Great Slime Film 2 (Guest at slime presentation)
Short Film PinPas (Shopping Person)
I Knew It (Winter Fair Visitor)
The Pirates Next Door 2 The Ninjas From The Other Side (Sexathlon Employee)
Misfit 4 (School Learner)
Contrarian (employee in the textile factory)