Defenseman AND Forward

[blamebettman]

Scott Niedermayer played some forward with the Devils as well

[Yurog]

Aaron Miller
John Klemm
Andrey Markov (drafted as a F)

[eva unit zero]

Jonathan Ericsson and Brendan Smith both started playing hockey as forwards and converted to defense sometime before jumping to the NHL (with Ericsson, he played defense as a fill-in and it was made permanent at the suggestion of Wings scout Hakan Andersson, who was at the game).

[Yurog]

forgot to mention about Vladimir Konstantinov. He played at the World Championship 86 in this role

[Disengage]

Nathan Paetsch played a bit at forward with the Sabres. I don't think he ever played higher than the 4th line.

[iamjs]

Brooks Orpik and Ryan Whitney played less than a handful of games on the 4th line, but I'm guessing you're looking for a player who regularly switched between F and D

Whitney: http://www.post-gazette.com/stories/...gnment-386703/

Orpik: http://www.post-gazette.com/stories/...-weird-378405/

[Burgs]

Not all that uncommon with goons. Steve MacIntyre was a defenseman in the WHL. Paul Bissonnette was a defenseman in juniors and in the ECHL but switched to forward when it became clear being an enforcer would be his best shot of making the NHL.