20 Things You Didn't Know About Serenity
3. It’s Always Sunny’s Glenn Howerton Has A Small Cameo
You may not have noticed, but Glenn Howerton (known now for his role in the comedy series, It's Always Sunny in Philadelphia) has a small role in the film, as a man who begs to come with the Firefly crew after the Reavers attack.
Another small coincidence for you - Howerton’s It’s Always Sunny character is Dennis Reynolds, the same last name as Nathan Fillion’s leading hero, Malcolm Reynolds.