In a chat with Transformers: Revenge of the Fallen writer Roberto Orci, UGO Movie Blog has officially confirmed that Frank Welker will be providing the voice of Soundwave.
In related Welker news, Doreen Mulman reports via Frank’s official site that The Incredible Don Knotts (biography by Stephen Cox and Kevin Marhanka published November 2008) includes interviews and photos from Frank.
Previous news: 4.13.2009 – Transformers News Round-Up.