A fifth series of BBC Three's paranormal drama was announced last night (Sunday, March 25).
Roberts, who plays vampire Adam, told Entertainment Weekly: "If they want Adam back, I'm sure I can go even crazier again. I would love it.
"The great thing is that he hasn't been killed or anything. At least you know he's not staked through the heart, so he can come back."
However, Roberts added that he had been satisfied with Adam's final scenes in series four's 'Hold the Front Page'.
"If he does [return], that's great," said the actor. "If he doesn't, he had a pretty good send off."
The Submarine star recently joked that playing Adam is "just an excuse... to f**k around".
"Not that I don't like the script, which is awesome, but it's cool that you get freedom [with the lines]," he said last month.
It was recently confirmed that Lenora Crichlow will not reprise her role as Annie in Being Human's fifth series, though Damien Molony (Hal) and Michael Socha (Tom) will both return.
The series will return to BBC Three in 2013.
> Being Human: Why BBC Three's spooky drama deserved a fifth series
Watch a behind-the-scenes feature on Adam's Being Human return below: