His 'Arrow' co-star John Barrowman.... is happily married to Scott Gill.

WATCH ARROW AT 8, WEDNESDAYS (TONIGHT!) ON THE CW!

Why are they holding hands if he's married..

Get that promo in for Arrow gerl! I see you.

To **** with the paparazzi.

Or to make a statement about the current gay marriage debate.

Or both.

Barrowman isn't getting divorced.

I thought that was John Barrowman.

Anyways, they're obviously very comfortable together if they are holding hands - and I'm sure Colton knows John is gay so it just adds to the receipts that Colton is gay. You don't see straight guys holding hands with each other - not even on The X Factor.

One of the mods does NOT want that Arrow promo.

Girl, yes!

They look like twins. Why do so many gay men always go for men that look like themselves?

It's adorable how John is getting Colton to slowly come out.

OMG! I think it's for publicity. Colton likes dick?

omg I didn't know the Torchwood guy was on Arrow

i'll start watching now

It's amazing.

I don't know why Colton isn't out yet. Those pics with his ex already gave it away

Aren't they all homosexuals

Exactly.