John Barrowman finally made an honest man out of his longtime partner, Scott Gill.

The "Arrow" actor -- who also starred on UK shows like "Doctor Who" and "Torchwood" -- tied the knot with his boyfriend of 20 years on Tuesday in California, just days after the Supreme Court overturned Prop 8.

"We're getting married in the state of California," Barrowman said in a WhoSay video. "Thank you Supreme Court, about time you made it legal. See you after we have the ceremony!"

He followed that video up with a photo of the couple holding their marriage license:

John and Scott entered into a civil partnership in the UK back in 2006. 

Congratulations to the happy couple! 

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