Robin Williams died in August, but his spirit is very much alive in the heart of actor Jamie Costa, who is garnering online acclaim for nailing spot-on impersonations of 18 characters Williams played over the course of his career.

The South Carolina-based performer not only sounds just like Williams as he channels Peter Pan from "Hook," Euphegenia Doubtfire from "Mrs. Doubtfire" and Professor Philip Brainard from "Flubber" (to name a few), he looks just like the late actor, from the hair to the facial expressions.

Costa's YouTube video "Never Had a Friend Like Him" has attracted over 1.3 million views since being published on Monday, and has been praised by thousands of commenters.

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"My tribute to the man whose spark ignited my passion," Costa wrote in the description of the viral video. "RIP Robin Williams."

Watch the video.