The answer is just about anybody!
The only physical requirement is to be able to deliver the bowl from one end of the rink to the other end.
Age is no barrier and Gender doesn't matter.
Able bodied and disabled can play side by side, with amputees, deaf, partially sighted, totally blind and wheelchair bowlers all taking part.
For those with physical movement limitations there are a range of devices (bowling arms etc.) to assist with the delivery of the bowl.