Speaking on the red carpet, Scott talked about his current storyline, one of many big plots that contributed to the BBC1 soap winning the award for Most Popular Serial Drama at the event.
He said: “We’re seeing a bit of the dark side of Jack now. He’s been nice and charming, but we’re going into his past now and he’s being tested at the moment.
“It’s always fun to play those characters because everyone likes a rogue-type guy. [Jack’s] having to step up against his own brother and it’s causing all kinds of trouble.”
He added: “This week is when it all comes to a head. It’s a big whodunnit – because there are enough people who could do it!
EastEnders’ second award went to Rita Simons, who plays Roxy Slater in the soap, for Most Popular Newcomer.
Other big winners at the National TV Awards included Hollyoaks’ Matt Littler for Outstanding Serial Drama Performance and David Tennant for Outstanding Drama Performance for Doctor Who, which also won the award for Most Popular Drama.
Ant and Dec picked up the award for Most Popular Entertainment Presenters for the eighth year running and The Paul O’Grady Show won Most Popular Entertainment Programme.
Simon Cowell was honoured with the Special Recognition Award, but his show The X Factor missed out on the award for Most Popular Talent Show, which went to Strictly Come Dancing.
Top Gear picked up the gong for Most Popular Factual Programme for the third year running, and the award for Most Popular Comedy Programme went to Benidorm.
Or CLICK below to watch Scott Maslen talking about EastEnders