I would think so. We had a Catholic Priest on board the Magic for the Christmas cruise and he said mass every day. I believe he said they arrange for a priest at both Christmas and Easter.
I cannot speak for Easter, but on a Christmas cruise there was a priest onboard and an open air Christmas morning service on the top deck, I believe where the sailaway party is held. Very nice.
GET UP TO A $1000 SHIPBOARD CREDIT AND AN EXCLUSIVE GIFT!
If you make your Disney Cruise Line reservation with Dreams Unlimited Travel you’ll receive these incredible shipboard credits to spend on your cruise!