Alias/Wavefront, an SGI company based in Toronto, has made a series of senior management changes. Doug Walker, previously VP of worldwide field operations and marketing, has been appointed president; Peter Mehlstaeubler has been promoted to VP; and Dave Wharry has joined Alias|Wavefront to take over the position of worldwide field operations and marketing. In addition, Warren Pratt, former president of Alias|Wavefront, has been named chairman of the company, as well as senior VP of engineering for SGI….Following a 13-year term at post facility Allied Film & Video, Dallas, most recently as video editor, Terry Hall has joined Video Post & Transfer, also Dallas, as assistant colorist…. Portland, Ore.-headquartered Will Vinton Studios has named Chris Rico director of development. Rico will be based in the company’s Los Angeles office, and will help develop Will Vinton’s primetime television and film business, and future Internet endeavors….Madoff Productions, a New York-based commercial production firm, has added executive producer Ed Daly, who had been a freelance line producer based in New York for the past several years….Domenic DiGiorgio has joined Santa Maria, Calif.-headquartered Computer Cafe as lead character animator. He was previously with Digital Animations Group, Bells Hill, Scotland, where he created animation for television commercials and interactive games. Computer Cafe also maintains an operation in Santa Monica….Venice, Calif.-based Blur Studio has promoted Al Shier to visual effects producer. Shier has served as a line producer and visual effects coordinator for Blur over the past two years….Bicoastal Pittard Sullivan has upped Curt Doty to executive VP. Doty continues to hold the title of creative director…. Lmnop Music and Sound Design, New York, has added composer John Sneider and producer Anthony Donelson to its staff….Judy Downes has joined Cramer Productions, Norwood, Mass., as senior executive producer. Downes had been president/executive producer of September Films, the long format division of September Productions, both formerly based in Boston. (September Films has recently closed, while September Productions has relocated its home base to New York)…..Dallas-based Cuppa Joe Music has added engineer Tim Nagle to its staff. Cuppa Joe is the music/audio division of Video Post & Transfer, Dallas….3-D animator/artist Orie Hegre has joined the staff of Hi-Wire, Minneapolis. Hegre was previously a member of Click 3X, Los Angeles’ 3-D animation department….Cyclotron, New York, has added animator Sam Crees and senior technical director Brad Fox to its staff. Crees was writer/director/animator on CartoonNetwork.com’s Thumbtown, and Fox comes over from Manhattan Transfer, where he worked in the New York-based postproduction facility’s 3-D department….Mixer Victor Bisio has joined Santa Monica-based AudioBanks. Bisio arrives from Hollywood Recording Services, Hollywood….Venice, Calif.-based Gray Matter FX has hired visual effects producer Amy Hollywood Wixson. Wixson arrives at Gray Matter from Digital Domain, Venice, where she worked as a visual effects producer in the company’s commercial division, as well as heading up key sequences on the recently-released X-Men feature via Digital Domain…. Deep Blue Sea, a design, animation and visual effects house in Miami, has added Michael Sherrin to its staff. The designer/animator/multimedia convergence specialist was previously a senior art director at Venture Productions, Miami, where he created and designed graphics for television, print, CD-ROMs, DVDs and Web sites….Smoke artist/ editor Cecil Hooker has joined the staff of Wild(child), New York. Wild(child) has also installed Discreet Logic’s Smoke in its facility. Hooker was previously with Boomtown, New York. In addition to Hooker, the Wild(child) editorial staff includes David Moritz, Hannah Neufeld, Hernan Menendez and company principal Yvette Pioeyro….San Francisco-headquartered Phoenix Editorial has formed an alliance with editor/ effects designer Michael Angelo. His credits include freelancing as an in-house director/DP/editor for numerous broadcast and corporate clients, as well as Goodby, Silverstein & Partners, San Francisco, and completing editorial and finishing duties on Third Eye Blind’s "Deep Inside of You" music video….