Depends:
Origins:
Fran Cousland- absolutely, though I'd classify her as a liberal Andrastian (sort of like Leliana, where she wants more inclusivity)
Tristan Amell- neutral/no real opinion, if anyone's a god it's his ego
Keldan Brosca- yes, actually an Andrastian convert (he sees human culture as a major step up from the caste system of his own people)
Ulgar Aeducan- no, he believes in the Stone/Paragons
Zell Tabris- yes though marginally. He's not really the religious sort so much as he believes there is SOMETHING
Tinuwen Mahariel- no, all about the Dalish pantheon
Arwen Surana- neutral/no real opinion. She believes there's SOMETHING but doesn't believe the Chantry tells the whole story
DA2:
All my Hawkes believed in the Maker, they just had different views on the whole templar vs mage conflict.
DAI:
Arthyen Trevelyan- yes, conservative (as in, pro-Templar) devout Andrastian
Caswyn Trevelyan- yes, also an Andrastian but one with more open ended views (pro-Mage, believes Andraste was a mage)
Gareth Lavellan- no, he believes in the Dalish gods, though he's more of a cultural believer as opposed to a religious one
Levana Lavellan- yes, she's an Andrastian convert (even became a Templar)
Nika Cadash- no, actually an atheist (my first real atheistic DA character as she not only doesn't believe in the Maker but is actually anti-Maker/anti-god(s))
Gilda Cadash- yes, surface dwarf and an Andrastian
Jade Adaar- no, she's mostly agnostic (doesn't confirm or deny there's a deity, or deities for that matter, and doesn't really care if there is)