William Shatner has vowed to keep working until he drops, because he loves acting so much.

The former Star Trek character has enjoyed a career renaissance and is currently starring in TV hit Boston Legal.

And he is loving staying busy at 74: "My job is great fun, challenging and well paid - why would I even think of giving it up?

"It's not like I'm working in a coalmine. I think most actors would like to think they'll still be in demand at this age, even if they're no longer a leading man.

"I'm very grateful that I'm still working, so I won't stop soon."