Sonya Walger, whose Penny turns up for Lost's 100th episode, is part of the cast for Flash Forward.

Those who tune in for Lost's 100th episode — and do not zap through the commercial pods — will spy teasers for Flash Forward, an ABC pilot which is envisioned as a possible companion series to the adventures of Jack, Sawyer et al.

Sources tell TVGuide.com that during commercial breaks for the Lost episode airing April 29, micro-promos for Flash Forward will almost literally flash on the screen, offering viewers a clue about how to learn more about the prospective new series.

Flash Forward concerns a supernatural event which causes the global population to "black out" for 2 minutes and 17 seconds. During that "lost" time, all survivors the phenomenon get a mysterious glimpse of the future. Although the project is technically still considered a pilot, this promotional effort would strongly suggest it's a lock to make ABC's 2009-10 schedule.

Flash Forward stars Joseph Fiennes, Sonya "Hey, It's Penny!" Walger, Courtney B. Vance and John Cho, and was written by David S. Goyer (Batman Begins) and Brannon Braga (Threshold).

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