A component (62;62';62";162) for a gas turbine engine such as a blade or vane comprising: a wall having an exterior surface and an interior surface (88A,89A,90A) spaced from the exterior surface; and a cooling circuit (92;92';92";192,192') extending from the interior surface (88A,89A,90A) to the exterior surface, wherein the cooling circuit (92... 192') includes: a feed passage (94;194) having a first end (94A;194A) defining an inlet at the interior surface (88A,89A,90A) and a second end (94B;194B) spaced from the first end (94A;194A); at least one second passage (96;96';196,196') in fluid communication with the feed passage (94; 194); and at least one slot passage (95;195) in fluid communication with the second end (94B;194B) of the feed passage (94;194) and a cooling slot (84A;84B) in the exterior surface, the second end of the feed passage is fluidly connected to a first end (96A;96A') of the at least one second passage (96;96'); characterised in that: a second end (96B;96B') of the at least one second passage (96;96') is fluidly connected to a mid-portion of the feed passage; and the at least one second passage (96;96') includes a plurality of second passages (96;96'), the at least one slot passage includes a plurality of slot passages, and the plurality of second passages (96;96') are in an alternating arrangement, extending in a radial direction, with the plurality of slot passages along the second end of the feed passage. a wall having an exterior surface and an interior surface (88A,89A,90A) spaced from the exterior surface; and a cooling circuit (92;92';92";192,192') extending from the interior surface (88A,89A,90A) to the exterior surface, wherein the cooling circuit (92... 192') includes: a feed passage (94;194) having a first end (94A;194A) defining an inlet at the interior surface (88A,89A,90A) and a second end (94B;194B) spaced from the first end (94A;194A); at least one second passage (96;96';196,196') in fluid communication with the feed passage (94; 194); and at least one slot passage (95;195) in fluid communication with the second end (94B;194B) of the feed passage (94;194) and a cooling slot (84A;84B) in the exterior surface, a feed passage (94;194) having a first end (94A;194A) defining an inlet at the interior surface (88A,89A,90A) and a second end (94B;194B) spaced from the first end (94A;194A); at least one second passage (96;96';196,196') in fluid communication with the feed passage (94; 194); and at least one slot passage (95;195) in fluid communication with the second end (94B;194B) of the feed passage (94;194) and a cooling slot (84A;84B) in the exterior surface, the second end of the feed passage is fluidly connected to a first end (96A;96A') of the at least one second passage (96;96'); characterised in that: a second end (96B;96B') of the at least one second passage (96;96') is fluidly connected to a mid-portion of the feed passage; and the at least one second passage (96;96') includes a plurality of second passages (96;96'), the at least one slot passage includes a plurality of slot passages, and the plurality of second passages (96;96') are in an alternating arrangement, extending in a radial direction, with the plurality of slot passages along the second end of the feed passage. a second end (96B;96B') of the at least one second passage (96;96') is fluidly connected to a mid-portion of the feed passage; and the at least one second passage (96;96') includes a plurality of second passages (96;96'), the at least one slot passage includes a plurality of slot passages, and the plurality of second passages (96;96') are in an alternating arrangement, extending in a radial direction, with the plurality of slot passages along the second end of the feed passage.