The original Thomas the Tank Engine & Friends narrator is to play flamboyant character Fibonacci in a new episode of a relaunched run of The Powerpuff Girls.
In an update video posted on his official YouTube channel, Ringo confirmed his guest stint by presenting a behind-the-scenes snippet of himself recording lines.
A character artwork of Fibonacci is seen at the start of the clip, who bears a somewhat uncanny resemblance to The Beatles drummer in his heyday.
Starr's last cartoon role was that of a memorable turn as The Duck Brothers in Courage the Cowardly Dog twelve years previous. The Powerpuff Girls' last regular episode was in 2005 with a 10th anniversary special following in 2009.
The Powerpuff Girls returns to Cartoon Network in the US in the fall of 2013.
Thanks to Chris Signore for the alert.