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No, you're not seeing double. There are *two* very special (and very similar-looking!) guest stars on tonight's season finale of Bizaardvark: Austin and Ally's Calum Worthy and internet personality Thomas Sanders.

Tonight, Thomas plays Ian, the host of the popular web reality competition, "In Your Space!" Calum returns to the show as Victor, a Vuuugle content creator. Frankie, Paige, Victor and Dirk all compete on the show, and we can't wait to see who comes out on top.

Thomas is just the latest social media star to be featured on the Disney Channel show. Last week, Lilly Singh guest starred on the ep, and before that, Rosanna Pansino popped in and schooled Bernie on baking.

Calum says he had a blast shooting the ep and working with Thomas, but the lookalike pair had a hilarious convo when they first met. "For a long time people have mistaken me for Thomas and Thomas for me. So the first thing we said to each other was, 'People always think I'm you!' So we've teamed up and transformed into one ultimate, awkward funny guy."

Gotta say, we definitely wouldn't mind that! But for tonight, catch *both* ultimate, awkward funny guys on Bizaardvark at 6:30 p.m. EST on Disney Channel.

What other social media stars do you want to see on Bizaardvark? Sound off below!

Photo credit: Disney Channel/Eric McCandless

by Sydney Adamson | 1/27/2017